https://appliancetechmanuals.com SAMSUNG French Door Refrigerator AW4-4D PJT New product training for refrigerator MODEL NAME : RF31FM** / RF24FS** MODEL CODE : RF31FMESBSR/AA RF31FMESBSL/SA RF31FMEDBSR/AA RF31FMEDBBC/AA RF31FMEDBWW/AA RF31FMEDBSL/ML 2013. 02 RF31FMEDBSL/HC RF24FSEDBSR/AA RF24FSEDBSR/EU RF24FSEDBSR/EF RF24FSEDBBC/EU RF24FSEDBSR/WT RF24FSEDBSL/SA RF24FSEDBX3/SC https://appliancetechmanuals.com Contents 1 Precautions(Safety Warnings)---- 6 2 Product Specifications-------------13 2-1. Introduction of Main Function-------------------------------------------------------------13 2-2. Interior Views------------------------------------------------------------------------------------17 2-3. Model Specification &Specification Chart---------------------------------------------19 2-4. Dimensions of Refrigerator (Inches)-----------------------------------------------------24 2-5. Optional Material Specification------------------------------------------------------------26 2-6. Refrigerant Route in Refrigeration cycle-----------------------------------------------27 2-7. Principle Of Freezer----------------------------------------------------------------------------28 2-8. Operation theory of refrigeration cycle components-------------------------------29 2-9. Refrigeration Cycle Type---------------------------------------------------------------------34 2-10. Cooling Air Circulation----------------------------------------------------------------------35 3 Instruction of Function-------------36 3-1. Digital Display-----------------------------------------------------------------------------------36 2 https://appliancetechmanuals.com Contents 4 Disassembly and Assembly-------57 4-1. Precaution-----------------------------57 4-2. Refrigerator Door-------------------59 4-3. Door Handle Refrigerator--------61 4-4. Door Handle Freezer--------------62 4-5. Refrigerator Light------------------63 4-6. Cover-Display & Water-Dispenser --------------------------------------------64 4-7. Water-Dispenser--------------------65 4-8. Glass Shelf----------------------------70 4-9. Foldable Glass Shelf---------------70 4-10. Vegetable & Fruit Drawers Shelf -------------------------------------------71 4-11. Case Water Filter------------------72 4-12. How to Remove the Carbonator Kit --------------------------------------74 4-13. Motor Damper----------------------77 4-14. Water Filter (Assembly & Disassembly)-----------------------78 4-15. Gallon Door Bin-------------------79 4-17. Vertical Hinged Section---------81 4-18. Evaporator Cover In Refrigerator -------------------------------------------82 4-19. Evaporator In Refrigerator------84 4-20. Freezer Door-------------------------85 4-21. Convertible Door-------------------87 4-22. Ice-Maker----------------------------- 89 4-23. Auger Motor Fan--------------------93 4-24. Flex Zone Light----------------------94 4-25. Freezer Light------------------------- 95 4-26. Side Light----------------------------- 96 4-27. Door Switch In Freezer----------- 97 4-28. Evaporator Cover In Freezer--- 98 4-29. Evaporator In Freezer------------ 99 4-30. Machine Compartment--------- 100 4-31. Comp Cooling Fan Motor----- 102 4-32. Relay O/L--------------------------- 104 4-33. COMPRESSOR------------------- 105 4-34. Electric Box------------------------ 106 4-35. Assembling Procedures of the CO2 Cylinder and Precautions------ 107 3 https://appliancetechmanuals.com Contents 5 Check the installation status-----126 5-1. Function for failure diagnosis---------------------------------------------------------------- 126 5-2. Diagnostic method according to the trouble symptom (Flow Chart)--------------- 152 6 Self Diagnosis & Trouble Shooting-159 6-1. If the trouble is detected by self-diagnosis----------------------------------------------- 159 6-2. IF FAN does not operate--------------------------------------------------------------------- 178 6-3. If ICE Room Fan does not operate-------------------------------------------------------- 181 6-4. When ICE MAKER(FF) does not operate------------------------------------------------ 183 6-5. If defrost does not operate (F,R DEF Heater)------------------------------------------- 185 6-6. When Power is not applied------------------------------------------------------------------- 188 6-7. When Compressor does not run (Inverter COMP.) ----------------------------------- 190 6-8. When alarm sounds continuously without stop(related with buzzer sound)----- 192 6-9. When the Panel PBA does not operate normally--------------------------------------- 197 6-10. If Pantry Panel PCB is not working normally------------------------------------------- 200 6-11. If Pantry Panel PCB is not working normally------------------------------------------- 202 6-12. When refrigerator ROOM Lamp does not light up------------------------------------ 203 6-13. If ICE Water is not supplied----------------------------------------------------------------- 206 6-14. If Sparkling is not supplied------------------------------------------------------------------- 209 6-15. If Cubed or Crushed Ice is not supplied-------------------------------------------------- 212 6-16. If Cover Ice Route Motor(Geared Motor) is not working normally---------------- 215 6-17. IR Sensor Trouble-Shooting---------------------------------------------------------------- 218 6-18. LED blinking frequency depending on protecting functions------------------------ 220 6-19. General diagnosis ----------------------------------------------------------------------------- 221 6-20. Diagnosis for Sparkling system (Only for RF31FM*S*)------------------------------ 224 4 https://appliancetechmanuals.com Contents 7 PCB Diagram---------------------------239 7-1. PCB Layout with part position---------------------------------------------------------------- 239 7-2. PCB Layout with part position (Inverter Board)------------------------------------------ 241 7-3. Connector Layout with part position (Main Board)-------------------------------------- 242 7-4. Connector Layout with part position (Inverter Board)----------------------------------- 243 8 Wiring diagram------------------------224 9 Schematic Diagram------------------246 9-1. Whole block diagram--------------------------------------------------------------------------- 246 10 Model code table---------------------248 10-1. Nomenclature -------------------------------------------------------------------------------- 248 5 https://appliancetechmanuals.com 1. Precautions(Safety Warnings) ● Unplug the appliance before replacing or repairing electrical parts. ⇒ Be careful to avoid electric shock. ● Always use only the correct replacement parts. ⇒ Check the model name, rating voltage, rating current, running temperature symbols. ● When troubleshooting, verify that wiring harnesses are connected securely. ⇒ Make not to be separated when some power is imposed. ● Check the traces of water infiltration at the electric parts. ⇒ If there is a trace of water infiltration, exchange or tape the parts. ● Check the assemble status of parts after troubleshooting. ⇒ It must be in the same assembled state when compared with the state before disassembly. ● Check the use circumstance of refrigerator. ⇒ If the refrigerator is installed at the place that is damp or wet, or status of installation is unstable, change the installation place. ● Ground the refrigerator properly ⇒ Particularly, Be sure to earth when there is a risk of an electric leakage by humidity or wetness. ● Do not use multi plugs in a plug socket at the same time. Check if the power cord and socket is damaged, pressed, squeezed, or fired. ⇒ If the plug or plug socket is damaged, repair or exchange it immediately. ● Do not allow consumers to repair the appliance by themselves. ● Do not store other materials except the foods. ⇒ Drugs or scientific materials : difficult to keep precise temperature. ⇒ The inflammables(alcohol, benzene, ether, LP gas, butane gas etc.): have risk of explosion. 6 https://appliancetechmanuals.com 1. Precautions(Safety Warnings) Read all instructions before repairing the product and follow the instructions in order to prevent danger or property damage. Plug out and remove all the items in regrigerator prior to repair. CAUTION/WARNING SYMBOLS DISPLAYED Warning Indicates that a danger of death or serious injury exists. means “Prohibited”. means “Do not disassemble”. means “No contact”. Caution Indicates that a risk of personal injury or material damage exists. means ”Warning or Caution”. means “Unplug the unit before preforming service” means “Earth or Ground”. 7 https://appliancetechmanuals.com 1. Precautions(Safety Warnings) To do list Unplug to exchange the interior lamp. Use the rated components on the replacement. • It may cause electric shock. • Check the correct model, rated voltage, rated current, operating temperature and so on. On repair, make sure that the all wiring harnesses are reconnected. • Wiring harnesses should be connected tightly and kept dry. • Bundle tightly wires in order not to be detached by the external force and then not to be wetted. On repair, Make sure that all parts and wires are free of dust and debris. • Cleaning parts could help prevent fire or shorting. 8 https://appliancetechmanuals.com 1. Precautions(Safety Warnings) To do list Check the status of parts after replacement or troubleshooting. • All parts must be reinstalled properly. Check for visible traces of water on electrical parts. • Replace or secure any part that may have come in contact with water Customers should not store glass bottles of liquid in the freezer section. Frozen bottles could explode and cause injury. Customers should not store narrow or long bottles or food in a small door shelf. • These items could fall when the door is opened, causing injury tot he customer. 9 https://appliancetechmanuals.com 1. Precautions(Safety Warnings) To do list Drugs requiring precise temperatures should not be stored in the refrigerator. The refrigerator should be plugged into a dedicated outlet. • Multiple plugs in the outlet could cause excessive heat or fire. Consumers must not try to repair the refrigerator. • Electrical and mechanical parts could injure the consumer. Make sure the power cord is not damaged or crushed. • A damaged cord could cause excessive heat or fire. 10 https://appliancetechmanuals.com 1. Precautions(Safety Warnings) Articles on the product. • Opening or closing the door may cause things to fall down, which may cause injury. To do list Check the location where the refrigerator will be used. • If the refrigerator will be used in a damp or wet space, or if installation will be unstable, the unit should be relocated. The refrigerator must be grounded properly. • An earth ground should be used if there is a risk of high humidity or wetness. 11 https://appliancetechmanuals.com 1. Precautions(Safety Warnings) To do list FLOORING For proper installation, this refrigerator must be placed on a level surface of hard material that is the same height as the rest of the flooring. This surface should be strong enough to support a fully loaded refrigerator, or approximately 660lbs(299kg). MOVING Protect the finish of the flooring. Cut a large section of the cardboard carton and place under the refrigerator where you are working. When moving, be sure to pull the unit straight out and push back in straight. 12 https://appliancetechmanuals.com 2. Product Specifications To do list 2-1. Introduction of Main Function ■ A newly developed SAMSUNG bottom mount freezer in 2012 has the following characteristics. Image Feature Surround Multi Flow • Provides uniform cooling for each shelf and every corner in the fresh food section. This is accomplished by using a center positioned fan and duct with multiple cooling flow openings. Twin Cooling System •The refrigerator and the freezer each have an evaporator. Given this independent system, the freezer and the refrigerator are cooled individually as required and are, therefore, more efficient. Food odor from the refrigerator does not affect food in the freezer due to separate air flow circulation. Flex Zone •The Flex Zone is a full-width independent mid drawer with adjustable temperature control. 13 https://appliancetechmanuals.com 2. Product Specifications To do list 2-1. Introduction of Main Function Image Feature Counter Height Design •The Independent Mid Drawer(Flex zone) is counter Height to fit contemporary kitchen. Two Lever Dispenser •Two levers, one for ice and sparkling water, another one for water. Secure Auto Close Door System • Doors close tightly. • Food on the doors stays cool. • Prevents moisture from forming on the outside of the doors. 14 https://appliancetechmanuals.com 2. Product Specifications To do list 2-1. Introduction of Main Function ▶ Changing Items NO Item 1 Ez-Open Handle System The freezer door and Mid drawer (Flex zone) open and close easily. 2 Emotional Lighting The lighting helps you find groceries Easier by lighting down when you open Mid drawer(Flex zone) and freezer door. Smart Divider - Easy rail partition can divide off 4independent spaces easily. - The rail partition allows you to divide the space of the convertible room easier. 3 Details New Model 15 https://appliancetechmanuals.com 2. Product Specifications To do list 2-1. Introduction of Main Function ▶ Changing Items NO Item 4 Touch Sensor Lighting 5 Mono Ice Maker Details New Model The display change more wider and apply LED lighting. And Touch Sensor Lighting make the refrigerator graceful. 10 Cubes Ice-Maker (RF31FM**) 6 Cubes Ice-Maker (RF24FS**) 16 https://appliancetechmanuals.com 2. Product Specifications To do list 2-2. Interior Views(Model : RF31FM**) Refrigerator Flex zone Freezer 17 https://appliancetechmanuals.com 2. Product Specifications To do list 2-2. Interior Views(Model : RF24FS**) Refrigerator Flex zone Freezer 18 https://appliancetechmanuals.com 2. Product Information To do list 2-3. Model Specification &Specification Chart ITEM Model W On Cabinet W/O Handle D External size With Handle W/O Hinge Cap H With Hinge Cap Total Net Freezer Flex Zone Capacity Refrigerator Efficiency of volume Set Weight Packing Width Packing Depth Height Compressor Rated Frequency and Frequency Refrigerant Foaming Agent Refrigerant / Refrigerant Amount Type Refrigerator Motor Rated Consumption Power Electric Heater Rated Consumption Power RF31FM** RF24FS** RF31FM*S* RF31FM*D* ① ICE&WATER DISPENSER& SPARKLING WITH FLEX ZONE ② ICE&WATER DISPENSER WITH FLEX ZONE 35 6/8 Inch (908mm) 31 Inch (788mm) 24 1/8 Inch (613mm) 35 1/2 Inch (901mm) 28 1/2 Inch (726mm) 37 7/8 Inch (963mm) 31 Inch (788mm) 68 7/8 Inch (1749mm) 70 Inch (1777mm) 30.5(863.7ℓ) 23.5(665.4ℓ) 8.9(252.0ℓ) 6.4(181.2ℓ) 4.2(119.0ℓ) 3.3(93.4ℓ) 17.4(492.7ℓ) 13.8(390.8ℓ) 59.60% 60.60% 185kg 181kg 157kg 196kg 192kg 167kg 38 1/4 (972mm) 38 1/4 (972mm) 38 1/4 (972mm) 38 1/8 (792mm) 76 5/8 (1946mm) 76 5/8 (1946mm) RECIPROCATE AC 115V/60Hz R134a C-PENTANE 5.29 oz (160g) INDIRECT COOLING METHOD REFRIGERATOR 115W 510W(RF31FM*S**, For Sparkling Model Only) 490W(RF31FM*D** / RF24FS**, For Ice/Water Model Only) 19 https://appliancetechmanuals.com 2. Product Information To do list 2-3. Model Specification &Specification Chart Items Specification Model RF31FM** / RF24FS** Components for Freezer Compressor Evaporator Model MKV190CL2B/E01 Starting type BLDC Oil Charge FREOL α - 15c Freezer SPLIT FIN TYPE Refrigerator SPLIT FIN TYPE Condenser Forced and Natural Convection Type Dryer Molecular shieve XH-9 Capillary tube (Dia × Length) R:0.032" (0.082mm x 3500mm) Refrigerant R134a Temperature Selection On(°F) Off(°F) Freezer THERMISTOR (F-SENSOR) 502AT -8°F (-23℃) -5°F (-21℃) -11°F (-24℃) -0°F (-18℃) 3°F (-16℃) -3°F (-19℃) 5°F (-15℃) 8°F (-12℃) 2°F (-17℃) Refrigerator Room Temperature Sensor Components Model Model Temperature Selection On(°F) Off(°F) THERMISTOR (R-SENSOR) 502AT 34°F (1℃) 36°F (2℃) 32°F (0℃) 37°F (3℃) 39°F (4℃) 35°F (2℃) 44°F (7℃) 46°F (8℃) 42°F (6℃) 20 https://appliancetechmanuals.com 2. Product Information To do list 2-3. Model Specification &Specification Chart Items Specification Model RF31FM** / RF24FS** Defrost Cycle Defrost Sensor Bimetal Defrost Related Components First Defrost Cycle (Concurrent defrost of F and R) 6hr ± 10min Defrost Cycle (FRE) 12~30hr (vary according to the conditions used) Defrost Cycle (REF) 6~15hr (vary according to the conditions used) Pause time 12 ± 1min F DefrostSensor Model THERMISTOR (502AT) SPEC 5.0 ㏀ at 77°F (25℃) R DefrostSensor Rated THERMISTOR (502AT) Operating temperature 5.0 ㏀ at 77°F (25℃) Rated AC 125V, 6A / AC 250V 3A Operating temperature Off : 140°F (60℃) / On : 104°F (40℃) Rated AC 125V, 6A / AC 250V 3A Operating temperature Off : 140°F (60℃) / On : 104°F (40℃) F Bimetalthermo Protector 21 https://appliancetechmanuals.com 2. Product Information To do list 2-3. Model Specification &Specification Chart Items Specification Model RF31FM** / RF24FS** Defrost Heater (FRE) Heated at F Defrost AC 120V, 230W Defrost Heater (REF) Heated at R Defrost AC 120V, 120W F/S : AC 120V, 141W C/D : AC 120V, 120W Heater-Ice Maker Electric Components DISPENSER Heater Interlock with French Heater AC 120V, 2.5W FRENCH Heater - AC 120V, 10W Heater Water Pipe - DC12V, 2.3W Heater Ice room - DC12V, 2W Model AC 125V 6A / AC 250V 3A Off : 140°F(60℃). On : 104°F(40℃) 4TM445PHBYY-82 Temp. ON 156.2 ± 16.2°F (69 ± 9℃) Temp. OFF 257 ± 9°F (125 ± 5℃) Bimetal Thermo For Preventing of Refrigerator Heater Over Load Relay Rated Voltage AC 115V/60Hz Motor-BLDC(FRE) DC 12V / DREP5020LC Motor-BLDC BOX FAN DV 12V, 0.1A / 2606JL-04W-S39-UQ1 Motor-BLDC BOX FAN DC 12V, 0.16A / 2606JL-04W-S39-UQ1 22 https://appliancetechmanuals.com 2. Product Information To do list 2-3. Model Specification &Specification Chart Items Specification Model RF31FM** / RF24FS** Electric Components Motor-BLDC(CIRCUIT) DC 12V, 0.14A / DRCP8020LA Lamp LED(FRE) DC 12V / 85 ~ 130mA Lamp LED(REF) DC 12V, 85~130mA DC 12V, 40~80mA Lamp LED(VEG) DC 12V / 95~145mA Lamp LED(MID) DC 12V / 85 ~ 130mA Door Switch FRE DC 200V 1.5A / MS-406-SS-01 (1EA) REF DC200V 1.5A / MS-406-SS-01 (2EA) REF (ICE ROOM) 125VAC 5A, 250VAC 2.5A MID DC 200V 1.5A / MS-406-SS-01 (1EA) Power Cord AC 125V 15A Earth Screw BSBN (BRASS SCREW) 23 https://appliancetechmanuals.com 2. Product Specifications To do list 2-4. Dimensions of Refrigerator (Inches) ▶ MODEL : RF31FM** 24 https://appliancetechmanuals.com 2. Product Specifications To do list 2-4. Dimensions of Refrigerator (Inches) ▶ MODEL : / RF24** 25 https://appliancetechmanuals.com 2. Product Specifications 2-5. Optional Material Specification Photograph Part Name Part Code AMOUNT FILTER WATER-ASSY DA29-00020B 1 ASSY-PACKING SUB DA99-00240S 1 LED LAMP REF DA97-12606A 1 LED LAMP CASE-VEG R, L DA41-00519S 1 LED LAMP FRE DA41-00676G 1 LED LAMP MID DA41-00676G 1 LED LAMP REF(SIDE) DA41-00519Q 2 26 26 https://appliancetechmanuals.com 2. Product Specifications To do list 2-6. Refrigerant Route in Refrigeration cycle Compressor → Condenser → Hot Pipe → Back Cluster Pipe → Dryer → Capillary Tube → Refrigerator Evaporator → Pipe Direct Ice → Freezer Evaporator → Suction Pipe → Compressor 27 https://appliancetechmanuals.com 2. Product Specifications To do list 2-7. Principle Of Freezer 28 https://appliancetechmanuals.com 2. Product Specifications To do list 2-8. Operation theory of refrigeration cycle components ■ Condenser 1) Role: A device which radiates heat to the outside (water/air) to make liquid state for the high temperature / high pressure gas refrigerant discharged from compressor 2) Types A. Air-cooling Type : Condense air by circulating naturally or manually. 1) Natural Convection Type : Used for the household refrigerator which has small condensing capacity. 2) Manual Convection Type : Circulate air manually by FAN-Motor (Large capacity) B. Water-cooling Type : Make cooling water pass through the pipe in the condenser (Large capacity) ※ Location ① CLUSTER heat-radiating type : All Pipes effective for radiating heat are formed in the right/left, and front side of refrigerator with hard urethanes and radiate heat through the whole surfaces of cabinet to ambient air. ② Install the condenser on the outside of the product. (An old model) ③ Make them cluster at the lower part of product and radiate heat manually by fan. ※ Radiate condensed potential heat up to liquefy completely and make change the state without changing the gas temperature itself. ※ Pipe thickness ① Low pressure : 0.7mm ② High pressure : 0.7mm ③ Capillary : About 0.4~0.8mm ※ Condenser length : 32.75m ① SUB-CONDENSER : 14.25m ② HOT-PIPE : 10.7m ③ CLUSTER-PIPE : 7.8m 29 https://appliancetechmanuals.com 2. Product Specifications To do list 2-8. Operation theory of refrigeration cycle components ■ Capillary 1) Role: A device which makes low temperature and pressure refrigerant by reducing the pressure the normal temperature / high pressure liquid refrigerant condensed from condenser, and supply it to the evaporator. A. To evaporate more lower temperature in case of evaporation. B. It flows to the evaporator without back flowing to condenser, if compressor stops, and the difference of pressure between high pressure and low pressure is small so it is easy to operate the compressor again. 2) Outline A. Thickness : About 0.4~0.8mm B. Length : It is changeable to low temperature and pressure (10->5ßΠ/ß≤) depends on the 2M of thin and long copper pipe wall resistance. 30 https://appliancetechmanuals.com 2. Product Specifications To do list 2-8. Operation theory of refrigeration cycle components ■ Evaporator 1) Role: As the low pressure liquid refrigerant flowed from capillary absorbs heat inside of the refrigerator, it becomes low pressure gas and refrigerate the foods. 2) Theory: The low pressure refrigerant flowed to evaporator operates cooling which takes ambient evaporated potential heat with maintaining the evaporation up to evaporate completely. 3) Types: A. ROLL-BOND Evaporator --> Direct Cooling ONE-DOOR Type ☞ Rolled and adhere the 2 aluminum plate and then make refrigerant passage. B. FIN-PIPE Evaporator ⇡ Indirect cooling TWO-DOOR Type ☞ A small aluminum plate on the aluminum pipe to increase the cooling effect. ■ Compressor 1) Role: It operates same as pump which pull out the subterranean water. It inhales the low temperature and pressure refrigerant gas (flowed out) from evaporator and make high temperature and pressure refrigerant liquid in the compressor and send it to the condenser. 2) Type A. Back-and-forth motion type: A method that pistol makes back-and-forth motion through shaft and cylinder of motor rotation and compresses. ※ Used for household refrigerant B. Rotary Type: A method that inhales the refrigerant gas through the gap between the outside of rotor electric attached on the shaft (rotation axis) and the inside of cylinder and compresses. C. Centrifugal Type 31 https://appliancetechmanuals.com 2. Product Specifications To do list 2-8. Operation theory of refrigeration cycle components ■ Dryer 1) Role: Absorb the moisture from the refrigerant that refrigeration cycle circulates and eliminate the foreign substance. 2) Structure: If even some moisture is included refrigerant is impossible to circulate by freezing the small capillary outlet, so silica gel or molecular sieve is (included and) sealed to absorb the internal moisture, and install a minute net to eliminate the foreign substance. 32 https://appliancetechmanuals.com 2. Product Specifications To do list 2-8. Operation theory of refrigeration cycle components ※ Influence of moisture ① Moisture precipitation – Blocked by ice ② Refrigerant and reaction ③ Life reduction of oil ④ Acceleration of oxidization ⑤ Copper plating phenomenon ⑥ Gas dissolution by the interaction of synthetic insulating material (insulator) ※ Influence of foreign substance ① Increase of condensed temperature. ② Increase of temperature. ③ Decrease of cooling efficiency ④ Shorten the life by friction between oil and foreign substance in the compressor. ■ Accumulator 1) Role : To send a pure refrigerant gas to compressor by removing completely the refrigerant liquid from evaporator. ※ If a refrigerant liquid go into the compressor, overload is occurred. 33 https://appliancetechmanuals.com 2. Product Specifications To do list 2-9. Refrigeration Cycle Type HM Cycle Compressor Dryer ICE Pipe Condenser Capillary Tube Freezer Evaporator Hot Pipe Back Cluster Pipe Refrigerator Evaporator Suction Pipe Compressor 34 https://appliancetechmanuals.com 2. Product Specifications To do list 2-10. Cooling Air Circulation Refrigerator Flex Zone Freezer 35 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMES** (For Sparkling model Only ) RF323TE** 1 Energy Saver Touching this button turns Energy Saver mode on and off. When you turn Energy Saver on, the Energy Saver icon lights. Turn Energy Saver off and the icon goes off. The Energy Saver function’s factory setting is “ON”. If condensation or water drops appear on the doors, turn the Energy Saver mode off. 2 Freezer (Hold 3 sec for Power Freezer) The Freezer button serves two purposes: - To set the Freezer to your desired temperature. - To turn the power freezer function on and off. 1) To set the Freezer temperature Touching the Freezer button to set the Freezer to your desired temperature. You can set the temperature between 5 °F(-15 ℃) and 8 °F(-23 ℃). 2) Power Freezer function Touch and hold this button for 3 seconds to decrease the time needed to freeze products in the Freezer. It can be helpful if you need to quickly freeze easily spoiled items or if the temperature in the freezer has warmed dramatically (For example, if the door was left open). 36 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMES** (For Sparkling model Only ) RF323TE** 3 Alram(Hold 3 sec for Filter Reset The Alarm button serves two purposes: - To turn the door open alarm on and off - To reset the water fi lter life indicator. 1) Door Alarm Function If the door alarm is set to On, an alarm beeps if any refrigerator door is left open for more than three minutes. The beeping stops when you close the door. The door alarm function is pre-set to On in the factory. You can turn it off by pressing and then releasing the Alarm button. You can turn it back on in the same fashion. The icon lights up when the function is on. When the Door Alarm function is on and there is an alarm sound which is triggered by the door opening, the Door Alarm Icon will blink together with the alarm sound. 2) Water Filter Life Indicator Function After you replace the water fi lter Touch and hold this button for 3 seconds to reset the water fi lter life indicator. When you reset the water fi lter life indicator, the Filter icon on the panel turns Off. The Filter icon will turn red to let you know it is time to change the water fi lter after six months (about 300 gallons). Some areas have large amounts of lime in their water, which causes the water fi lter to clog more quickly. If this is the case in your area, you will have to change the fi lter more frequently than every six months. 37 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMES** (For Sparkling model Only ) RF323TE** 4 Lighting (Hold 3 sec for ºC ↔ ºF) Lighting button serves two purposes: - To turn the dispenser light on and off - To switch the temperature units between ºC and ºF 1) Light Function Touching the Lighting button turns on the Dispenser LED lamp in continuous mode so that it stays on continuously. The button also lights up. If you want the Dispenser lamp to come on only when someone uses the dispenser, press the Lighting button to turn the continuous mode off. 2) To switch the temperature units between ºC and ºF Touch and hold this button for 3 seconds to select the temperature display you want. Each time you press and hold the button, the ºC and ºF temperature modes alternate and the ºC and ºF icon lights up, indicating your selection. 38 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMES** (For Sparkling model Only ) RF323TE** 5 Fridge (Hold 3sec for Power Cool) The Fridge button serves two purposes: - To set the Fridge to your desired temperature. - To turn the power cool function on and off. 1) To set the Fridge temperature Press the Fridge button to set the refrigerator to your desired temperature. You can set the temperature between 44°F (7℃) and 34°F (1°C) . 2) Power Cool function Touch and hold this button for 3 seconds to decrease the time needed to cool products in the Refrigerator. It can be helpful if you need to quickly cool easily spoiled items or if the temperature in the fridge has warmed dramatically (For example, if the door was left open). 6 Ice Off (Hold 3sec for Child Lock) The Ice Off button serves two purposes: - To turn the Ice maker on and off - To turn the power cool function on and off. 1) Ice Off Function If you don’t want to make more ice, press the Ice Off button. 39 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMES** (For Sparkling model Only ) RF323TE** 6 Ice Off (Hold 3sec for Child Lock) 2) Child Lock Function Touch and hold this button for 3 seconds to lock the display, the Flex Zone panel, and the dispenser buttons so the buttons can not be used. Replace the highlighted text with this text: When Child Lock is on, the refrigerator does not dispense ice, water, or sparkling water, even if the Dispenser Lever is pressed. The Child Lock icon lights up to indicate you’ve activated the Child Lock function. Press 3 seconds to unlock. 7 Sparkling Water ( Hold 3 sec for Cylinder Reset ) The Sparkling button serves three purposes : - To dispense sparkling (carbonated) water. - To select the carbonation level of the sparkling water. - To turn the Cylinder Reset Function on. 1) To dispense sparkling (carbonated)water. To dispense sparkling water, press the Sparkling Water button. When you press the Sparkling Water button while either Cubed Ice or Crushed Ice is selected, the Sparkling Icon will turn on. 40 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMES** (For Sparkling model Only ) RF323TE** 7 Sparkling Water ( Hold 3 sec for Cylinder Reset ) When there is no sparkling water left or the refrigerator is making sparkling water, the dispenser does not dispense sparkling water. 2) To select the carbonation level of the sparkling water. When you press the Sparkling Water button while the Sparkling Water Production function is turned on, the Carbonation Level will change as follows; Medium (Level-2) → Strong (Level-3) →Weak (Level-1) → Medium (Level-2). The next time the refrigerator makes sparkling water, it applies the new Carbonation Level. - If there is previously produced sparkling water inside the Sparkling Water tank, the refrigerator dispenses sparkling water with the previous carbonation level. (Changes in the carbonation level do not take effect until the next time the refrigerator makes sparkling water.) - While the refrigerator is producing sparkling water, the Carbonation Level icons light up in rotation (Level-1 → Level-2 → Level-3 → Level-1, etc.). If you press the Sparkling Water button when the refrigerator is making sparkling water, the current carbonation level is displayed for several seconds, and then the Carbonation Level icon light rotation begins again. If you press the Sparkling Water button again while the current carbonation level is being displayed, the 41 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMES** (For Sparkling model Only ) RF323TE** 7 Sparkling Water ( Hold 3 sec for Cylinder Reset ) carbonation level changes. The change in the carbonation level will take effect the next time the refrigerator makes sparkling water. - If you change the carbonation level when the refrigerator is making sparkling water, the refrigerator produces sparkling water at the previous carbonation level. 3) To activate the Cylinder Reset Function After you change CO2 cylinders, press the Sparkling Water button for three seconds to activate the Cylinder Reset function. When you activate the Cylinder Reset function, the refrigerator starts making sparkling water. If you activate the Cylinder Reset function when the Sparkling Water Production function is OFF, the Sparkling Water Production OFF Icon turns off and the Carbonation Level icons light up in rotation (Level-1 → Level-2 → Level-3 → Level-1, etc.), indicating that the refrigerator is making sparkling water. While the refrigerator is making sparkling water, it will not dispense sparkling water. If you set the Sparkling Water Production function to OFF within several seconds after activating the Cylinder Reset function, the Sparkling Water Production OFF Icon turns on and the refrigerator does not make sparkling water. 42 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMES** (For Sparkling model Only ) RF323TE** 7 Sparkling Water ( Hold 3 sec for Cylinder Reset ) Sparkling water that is produced as the result of activating the Cylinder Reset function may have a carbonation level higher than the current Carbonation Level setting. If you want accurate carbonation level in the next production, you need to empty the tank before you start production. 43 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMES** (For Sparkling model Only ) RF323TE** 8 Cubed / Crushed (Hold 3sec for Sparkling On/Off) The Cubed/Crushed button serves two purposes: - To select the type of ice you want dispensed. - Sparkling Water Production Function On and Off 1) To Select the type of ice Press the Cubed/Crushed button to select the type of ice you want dispensed. Each time you press the button, the cubed and crushed ice modes alternate and the Cubed or Crushed ice icon lights up, indicating your selection. 2) Sparkling Water Production Function On / Off Each time you press this button for 3seconds, you turn the Sparkling Water Production function on or off. When you turn on the Sparkling Water Production function, the refrigerator begins to make sparkling (carbonated) water. 44 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMES** (For Sparkling model Only ) RF323TE** 8 Cubed / Crushed (Hold 3sec for Sparkling On/Off) Replace the highlighted text with this text: (If you turn off the Sparkling Water Production function a few seconds after turning it on, sparkling water production will terminate. If more than a few seconds pass, the refrigerator will start producing sparkling water. While the refrigerator is producing sparkling water, it won’t dispense sparkling water.) When you turn off the Sparkling Water Production function, the “OFF” Icon on the Display Panel turns on. When you turn on the Sparkling Water Production function, the “OFF” Icon on the Display Panel turns off. When the Sparkling Water Production function is off, the refrigerator does not make sparkling water. If you turn off the function when the refrigerator is in the middle of making sparkling water, it halts the function after fi nishing the current operation. Your refrigerator was manufactured with the Sparkling Water Production function set to “OFF”. When you are connecting the water lines, or mounting or replacing the CO2 Cylinder, turn off the Sparkling Water Production function before you begin. Turn on the function only after you have completed the work. To produce sparkling water, you must install a CO2 Cylinder. For instructions, see Installing and Using CO2 Cylinders. 45 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMES** (For Sparkling model Only ) RF323TE** 9 Ice Off If you don’t want to make more ice, touch the Ice Off button. The icon will light up and the Ice-Maker stops making ice. Note We recommend you stop ice making if the following occur: - There is enough ice in the ice bucket. - You want to save water and energy. - Water is not being supplied to the refrigerator. Note If the ice maker function is ON, and the water Line is not connected, there will be a water valve noise from the back of the unit. If this occurs, press the Ice Off (Hold 3sec for child lock) button for less than 3 seconds until the Ice Off Indicator ( ) illuminates. 46 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMES** (For Sparkling model Only ) To save electricity, the Panel Display turns off automatically under the following conditions: When no button has been pressed, when no doors are open, or when no Dispenser Lever has been pushed. However, the icon indicating your cubed or crushed ice selection, or sparkling water selection, will stay on. When you press a button, open a door, or push a Dispenser Lever, the Panel Display will turn on again. All function keys will become operational after you remove your fi nger from the button you pressed. 10 Filter Water filter usage This icon will light up when you need to change the fi lter. After you use about 300 gallons of water, the fi lter indicator lights up. (after about 6 months). After you install the new water fi lter, reset the fi lter indicator by touch and hold 3sec for Filter Reset button. 47 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMES** RF323TE** (For Sparkling model Only ) Note - If water is not dispensing or dispensing slowly, you need to replace the water fi lter because the water fi lter is clogged. - Some areas have large amounts of lime in their water, which causes the water fi lter to clog more quickly. 11 Cubed Ice/ Crushed Ice Press the Cubed/Crushed button to select the type of ice you want dispensed. Each time you press the button, the cubed and crushed ice modes alternate and the Cubed or Crushed ice icon lights up, indicating your selection. 12 Sparkling Icon When you press the Sparkling button (Button 8), the Sparkling Water Icon goes on. 48 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMES** (For Sparkling model Only ) 13 Sparkling Water Production Level Icons The Sparkling Water Production Level icons display the currently set Carbonation Level. When you press the Sparkling Water button while the Sparkling Water Icon is turned on, the Carbonation Level will change as follows; Medium (Level-2) → Strong (Level-3) →Weak (Level-1) → Medium (Level-2). - If there is previously produced sparkling water inside the Sparkling Water tank, the refrigerator dispenses sparkling water with the previous Carbonation Level. (Changes in the Carbonation Level do not take affect until the next time the refrigerator makes sparkling water.) - While the refrigerator is producing sparkling water, the Carbonation Level icons light up in rotation (Level-1 → Level-2 → Level-3 → Level-1, etc.). If you press the Sparkling Water button when the refrigerator is making sparkling water, the current carbonation level is displayed for several seconds, and then the Carbonation Level icon light rotation begins again. If you press the Sparkling Water button again while the current carbonation level is being displayed, the carbonation level changes. The change in the carbonation level will take effect the next 49 time the refrigerator makes sparkling water. https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMES** (For Sparkling model Only ) 13 Sparkling Water Production Level Icons - If you change the carbonation level when the refrigerator is making sparkling water, the refrigerator produces sparkling water at the previous carbonation level. 50 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMES** (For Sparkling model Only ) 14 Sparkling Water Production Function Off Icon Each time you press Cubed/Crushed button (button 8) for 3 seconds, you turn the Sparkling Water Production function on or off. When you turn off the Sparkling Water Production function or when selecting the Cylinder Reset Function, the Sparkling Water Off Icon on the Display Panel turns on. When you turn on the Sparkling Water Production function, the Off Icon on the Display Panel turns off. Note If a water leak is detected in the Sparkling Water Production Module, the Off Icon blinks, the refrigerator stops dispensing and producing sparkling water, and the Sparkling Water Production function automatically switches to OFF. In addition, the Sparkling Water Production function will not turn on, even if you press the Cubed/Crushed button or Sparkling Water button for 3 seconds 51 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMES** (For Sparkling model Only ) RF323TE** Cooling Off Mode ( ) - North American (US, Canada) Models Only ; Cooling Off mode (also called Shop mode), is designed for use by retailers when they are displaying refrigerators on the shop fl oor. In Cooling Off mode, the refrigerator’s fan motor and lights work normally, but the compressors do not run, and the refrigerator and freezer do not get cold. To start Cooling Off mode, touch and hold the Energy Saver button and the Freezer button for 5 seconds during normal operation. The refrigerator chime sounds and the temperature display fl ashes “OFF”. To cancel Cooling Off mode, touch and hold the Energy Saver and the Freezer buttons again for 5 seconds. 52 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMED** (For Ice/water model Only ) RF323TE** 1 Energy Saver Touching this button turns Energy Saver mode on and off. When you turn Energy Saver on, the Energy Saver icon lights. Turn Energy Saver off and the icon goes off. The Energy Saver function’s factory setting is “ON”. If condensation or water drops appear on the doors, turn the Energy Saver mode off. 2 Freezer (Hold 3sec for Power Freezer) The Freezer button serves two purposes: - To set the Freezer to your desired temperature. - To turn the power freezer function on and off. 1) To set the Freezer temperature Touching the Freezer button to set the Freezer to your desired temperature. You can set the temperature between 5 °F(-15 ℃) and 8 °F(-23 ℃). 2) Power Freezer function Touch and hold this button for 3 seconds to decrease the time needed to freeze products in the Freezer. It can be helpful if you need to quickly freeze easily spoiled items or if the temperature in the freezer has warmed dramatically (For example, if the door was left open). 53 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMED** (For Ice/water model Only ) RF323TE** 3 Alram(Hold 3 sec for Filter Reset The Alarm button serves two purposes: - To turn the door open alarm on and off - To reset the water fi lter life indicator. 1) Door Alarm Function If the door alarm is set to On, an alarm beeps if any refrigerator door is left open for more than three minutes. The beeping stops when you close the door. The door alarm function is pre-set to On in the factory. You can turn it off by pressing and then releasing the Alarm button. You can turn it back on in the same fashion. The icon lights up when the function is on. When the Door Alarm function is on and the alarm sound is triggered, the Door Alarm Icon will blink while the alarm sounds. 2) Water Filter Life Indicator Function After you replace the water filter, touch and hold this button for 3 seconds to reset the water fi lter life indicator. When you reset the water fi lter life indicator, the Filter icon on the panel turns Off. The Filter icon will turn red to let you know it is time to change the water fi lter after six months (about 300 gallons). Some areas have large amounts of lime in their water, which causes the water fi lter to clog more quickly. If this is the case in your area, you will have to change the fi lter more frequently than every six months. 54 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMED** (For Ice/water model Only ) RF323TE** 4 Lighting (Hold 3 sec for ºC ↔ ºF) Lighting button serves two purposes: - To turn the dispenser light on and off - To switch the temperature units between ºC and ºF 1) Light Function Touch the Lighting button turns on the Dispenser LED lamp in continuous mode so that it stays on continuously. The button also lights up. If you want the Dispenser lamp to come on only when someone uses the dispenser, press the Lighting button to turn the continuous mode off. 2) To switch the temperature units between ºC and ºF, Touch and hold this button for 3 seconds to select the temperature display you want. Each time you press and hold the button, the ºC and ºF temperature modes alternate and the ºC or ºF icon lights up, indicating your selection. 55 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMED** (For Ice/water model Only ) RF323TE** 5 Fridge (Hold 3sec for Power Cool) The Fridge button serves two purposes: - To set the Fridge to your desired temperature. - To turn the Power Cool function on and off. 1) To set the Fridge temperature Press the Fridge button to set the refrigerator to the temperature you want. You can set the temperature between 44°F (7℃) and 34°F(1℃) . 2) Power Cool function Touch and hold this button for 3 seconds to decrease the time needed to cool products in the Refrigerator. It can be helpful if you need to quickly cool easily spoiled items or if the temperature in the fridge has warmed dramatically (For example, if the door was left open). 6 Ice Off (Hold 3sec for Child Lock) The Ice Off button serves two purposes: - To turn the Ice maker on and off - To turn the Child Lock Function on and off. 1) Ice Off Function If you don’t want to make more ice, press the Ice Off button. 56 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMED** (For Ice/water model Only ) RF323TE** 6 Ice Off (Hold 3sec for Child Lock) 2) Child Lock Function Touch and hold this button for 3 seconds to lock the display, the Flex Zone panel, and the dispenser buttons so the buttons can not be used. When the Child Lock is on, the refrigerator does not dispense ice or water even if you press the Dispenser Lever. The child lock icon lights up to indicate you’ve activated the child lock function. Press 3 seconds to unlock. 7 Cubed Ice 8 Crushed Ice Press the Cubed Ice or Crushed Ice button to select the type of ice you want dispensed. Each time you press the button, the cubed and crushed ice modes alternate and the Cubed or Crushed ice icon lights up, indicating your selection. 57 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMED** (For Ice/water model Only ) RF323TE** 9 Ice Off If you don’t want to make more ice, touch the Ice Off button. The icon will light up and the Ice-Maker stops making ice. Note We recommend you stop ice making if the following occur: - There is enough ice in the ice bucket. - You want to save water and energy. - Water is not being supplied to the refrigerator. Note If the ice maker function is ON, and the water Line is not connected, there will be a water valve noise from the back of the unit. If this occurs, press the Ice Off (Hold 3sec for child lock) button for less than 3 seconds until the Ice Off Indicator ( ) illuminates. 58 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMED** (For Ice/water model Only ) RF323TE** To save electricity, the Panel Display turns off automatically under the following conditions: When no button has been pressed, when no doors are open, or when no Dispenser Lever has been pushed. However, the icon indicating your cubed or crushed ice selection will stay on. When you press a button, open a door, or push a Dispenser Lever, the Panel Display will turn on again. All function keys, except Energy Saver and the Cubed and Crushed keys will become operational after you remove your fi nger from the button you pressed. 10 Filter Water filter usage This icon lights up when you need to change the filter, usually after the refrigerator has dispensed about 300 gallons of water (after about 6 months). After you install the new water filter, reset the filter indicator by touching and holding the Hold 3sec for Filter Reset button for 3 seconds. Note - If water is not dispensing or dispensing slowly, you need to replace the water fi lter because the water fi lter is clogged. - Some areas have large amounts of lime in their water, which causes the water fi lter to clog more quickly. 59 https://appliancetechmanuals.com 3. Instruction of Function To do list 3-1. Digital Display RF31FMED** (For Ice/water model Only ) RF323TE** Cooling Off Mode ( ) - North American (US, Canada) Models Only ; Cooling Off mode (also called Shop mode), is designed for use by retailers when they are displaying refrigerators on the shop fl oor. In Cooling Off mode, the refrigerator’s fan motor and lights work normally, but the compressors do not run, and the refrigerator and freezer do not get cold. To start Cooling Off mode, touch and hold the Energy Saver button and the Freezer button for 5 seconds during normal operation. The refrigerator chime sounds and the temperature display fl ashes “OFF”. To cancel Cooling Off mode, touch and hold the Energy Saver and the Freezer buttons again for 5 seconds. 60 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-1. Precaution • Unplug the refrigerator before cleaning and making repairs. • Do not dissemble or repair the refrigerator by yourself. - It may cause risk of causing a fire, malfunction and/or personal injury. • Remove any foreign matter or dust from the power plug pins. - Otherwise there is a risk of fire. • Do not use a cord that shows cracks or abrasion damage along its length or at either end. • Do not plug several appliances into the same multiple power board. The refrigerator should always be plugged into its own individual electrical which has a voltage rating that matched the rating plate. - This provides the best performance and also prevents overloading house wiring circuits, which could cause a fire hazard from overheated wires. • Do not install the refrigerator in a damp place or place where it may come in contact with water. - Deteriorated insulation of electrical parts may cause an electric shock or fire. • The refrigerator must be grounded. - You must ground the refrigerator to prevent any power leakages or electric shocks caused by current leakage from the refrigerator. • Do not put bottles or glass containers in the freezer. - When the contents freeze, the glass may break and cause personal injury. • Do not store volatile or flammable substances in the refrigerator. - The storage of benzene, thinner, alcohol, ether, LP gas and other such products may cause explosions. 61 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-1. Precaution - Required Tools IMAGE ITEM USE Phillips Head Driver Use for assembling and disassembling of screw Flat Head Driver Use for assembling and disassembling of HomeBar, Dispenser, Deli Cartessen Box, Main PBA etc... Hex Wrench Ø2mm Use for assembling and disassembling of Handle Socket Wrench Ø10mm Use for assembling and disassembling of Door Hinge - Water whitening phenomenon All water provided to refrigerators flows through the core filter which is an alkaline water filter. In this process, the pressure in the water that has flowed out of the filter gets increased, and massive oxygen and nitrogen become saturated. When this water flows out in the air, the pressure plummets and the oxygen and nitrogen get supersaturated so that they turn into gas bubbles. The water could look misty due to these oxygen bubbles. It is not because dust or chemicals, just a few seconds later, it will be clean again. 62 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-2. Refrigerator Door Part name How to do Descriptive Picture 1. Remove the 3 screws holding down the Top Table and remove the Top Table (1) 2. Disconnect the electrical (2) above the upper left door hinge To disconnect the connector (2) more easily, press the end of the hook (3) and pull connector. Refrigerator Door Make sure unit is unplugged. 3. As shown in the picture, Remove water tube from hinge (4) by holding at the both sides of the Tube Fitting and pulling it out. And, remove the Tube Fitting (5) by pulling the water hose after pushing in the locking ring tab at the end of the Tube Fitting. 63 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-2. Refrigerator Door Part name How to do Descriptive Picture 4. After pulling the Hinge Lever, remove the Hinge. 5. Lift the door straightly up to remove while opening it more than 90°. Be careful not to drop the door. Refrigerator Door 6. With a Philips head screwdriver, remove the screw (6) attatched to the lower left and right door hinges. With a 0.4in Hex wrench, remove the 2 flat head screws (7) Remove the lower left and right door hinges (8). 7. With a Philips head screwdriver, remove the screw(9). After, With Flat Head Driver(10), Lift up and remove the Auto Hinge (11) 64 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-2. Refrigerator Door Part name How to do Descriptive Picture 8. If the Auto Closing Hinge is aligned to be vertical as shown in the figure, align it to be parallel by using the Door Middle Hinge. (Refer to No.5 for the disassembly of the Door Middle Hinge) Refrigerator Door Do not use a flat head screwdriver to align the Auto close Hinge. It may get damaged. Use the Door middle Hinge instead. 65 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-3. Door Handle Refrigerator Part name How to do Descriptive Picture 1. Loosen the Set Screw situated at the end of the inner part of handle about 0.1in by using Hex wrench. Door Handle Fridge 2. Pull the Set handle out by moving it straight up. Be careful not to scratch or break the parts. 66 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-4. Door Handle Freezer Part name How to do Descriptive Picture 1. Loosen the Set Screw situated at the bottom right of the appliance about 0.1in by using Hex wrench. Door Handle Freezer 2. Pull the Set handle out by moving it to the right side . Be careful not to scratch or break the parts. 67 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-5. Refrigerator Light Part name How to do Descriptive Picture 1. Press the tabs on the back of the Lamp Cover and take it off. Refrigerator Light 2. Remove the 2 screws And separate the LED panel. 68 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-6. Cover-Display & Water-Dispenser Part name How to do Descriptive Picture 1. Remove a screw under the display cover. CoverDisplay 2. Put the thumbs on the surface door and hold the bottom of the Display Panel with four fingers. And then, pull out the Display Panel as shown in the photo to remove it. Take care not to break the Locking Tabs. 3. Disengage the housing connector of display cover. (Apply for SPARKLING OPTION) 69 https://appliancetechmanuals.com 4. Disassembly and Assembly 4-7. Water-Dispenser Part name To do list (RF31FM*S**) How to do Descriptive Picture 1. Disengage 2 the Housing Connectors by pushing a flatblade screwdriver. WaterDispenser (SPARKLING OPTION) 2. Remove 2 screws of the Guide Ice Route Assy. 3. Pull the Guide Ice Route Assy and Disassemble the water hose. 70 https://appliancetechmanuals.com 4. Disassembly and Assembly 4-7. Water-Dispenser Part name To do list (RF31FM*S**) How to do Descriptive Picture 4. Assembly shall be in order from the disassembly. Before assembling Case-Ice and Route, please check the status of the hose. WaterDispenser (SPARKLING OPTION) 5. When assembling Cover-Display, first insert it from upper side and then assemble to bottom side. Otherwise, the hook can be broken 71 https://appliancetechmanuals.com 4. Disassembly and Assembly 4-7. Water-Dispenser Part name WaterDispenser (Ice/Water model ) (RF31FM*D** / RF24FS**) How to do 1. To do list Descriptive Picture Disengage the Housing Connector by pushing a flat-blade screwdriver. 2. Remove 2 screws of the Case Ice Route Assy. 3. Pull the Case Ice Route Assy. 72 https://appliancetechmanuals.com 4. Disassembly and Assembly 4-7. Water-Dispenser Part name To do list (RF31FM*D** / RF24FS**) How to do Descriptive Picture 4. Assembly shall be in order from the disassembly. Case-Ice and Route shall be assembled inside of hose. Otherwise, assemble cannot be accomplished. WaterDispenser (Ice/Water model ) 5. When assembling Cover-Display, first insert it from leftside and then assemble to rightside. Otherwise, the hook can be broken. 73 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-8. Glass Shelf Part name Glass Shelf How to do Descriptive Picture Remove the shelf by lifting the front part of the shelf up and pulling it out. 4-9. Foldable Glass Shelf Part name Foldable Glass Shelf How to do Descriptive Picture 1. Remove the Cap. 2. Remove 2 screws of the Folderble Glass Shelf. 74 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-10. Vegetable & Fruit Drawers Shelf Part name How to do Descriptive Picture 1. Remove the vegetable & fruit drawer by pulling the roller part and lifting it up. Vegetable & Fruit Drawers Shelf 2. While pressing the button on the left of the shelf in the picture, lift up the Vegeta ble & Fruit Drawer Shelf. (Refer to the pic ture) 3. Remove the vegetable & fruit drawer shel f by pulling it out. (Refer to the picture) 75 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-11. Case Water Filter Part name How to do Descriptive Picture To disassemble the Case Water Filter, remove the w ater filter and all drawers and shelves. 1. Remove the 3 screws holding down the Top Table and remove the Top Table (1). Case Water Filter 2. a. Remove Cover Tube Fitting (1). b. Remove the Water tube (blue) from the tube fitting by pushing in on the locking ring (2) and pulling out the tube. 3. Remove three screws securing the water tubes. 76 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-11. Case Water Filter Part name How to do Descriptive Picture 4. a. Pull the Water blue hose out. b. Push the Tube Fitting (3) and pull the grey hose out. Case Water Filter 5. Disconnect the 2 Housing connectors (4). 6. Lift and pull the Case Water Filter out. 77 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-12. How to Remove the Carbonator Kit Part name How to do Descriptive Picture 1. Remove the two screws located above the Top Door Guard of the Fridge. How to Remove the Carbonator Kit 2. Remove the CO2 Cylinder Cover(1). 3. Flip up the Lever. 78 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-12. How to Remove the Carbonator Kit Part name How to do Descriptive Picture 4. Remove the CO2 Cylinder by turning it counter clockwise. How to Remove the Carbonator Kit 5. Take off (2) by removing the two screws. 6. Remove the three screws. 79 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-12. How to Remove the Carbonator Kit Part name How to do 7. While pressing the Fitting, remove Water Hose(1ea). Remove the Connector Housing. How to Remove the Carbonator Kit Descriptive Picture the 8. Disassemble display refer to page 31. While pressing the Fitting, remove the Water Hose from DIS valve. 9. Remove the Connector Housing. 80 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-13. Motor Damper Part name How to do Descriptive Picture 1. Remove the 2 screw under the. water filter case and take off the cover damper(②). Motor Damper 2. Disengage 2 housing connector. 3. Take off the Motor Damper by pulling a flat-blade screwdriver. 81 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-14. Water Filter (Assembly & Disassembly) Part name How to do Descriptive Picture 1. Turn the water filter count-clockwise. (Refer to the picture) 2. Remove the water filter by pulling it. (Refer to the picture) Water Filter 3. Push the water filter directly. 4. Turn the water filter clockwise until it locked. Be sure to flush the dispenser thoroughly (approx. 6 to 7 minutes), otherwise water may drip from the dispenser. This means that there is still air in the line. 82 https://appliancetechmanuals.com 4. Disassembly and Assembly 4-15. Gallon Door Bin Part name To do list (RF31FM*S**) How to do Gallon Door Bin (SPARKLING OPTION TOP) 1. Remove the Cap. 2. Remove 2 screws of the Gallon Door Bin. 3. Lifting the Gallon Door bin up and pulling it out. Gallon Door Bin (SPARKLING OPTION – BOTTOM) 1. Open Cylinder cover. 2. Remove the door bin by moving straight up. Descriptive Picture 83 https://appliancetechmanuals.com 4. Disassembly and Assembly 4-16. Gallon Door Bin Part name To do list (RF31FM*D** / RF24FS**) How to do Gallon Door Bin (Right) 1. Remove the door bin by moving straight up. Gallon Door Bin (Left) 2. a. Remove dis door bin by moving straight up. b. Remove by moving up the left side of door bin. Descriptive Picture 84 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-17. Vertical Hinged Section Part name How to do Descriptive Picture 1. Remove 2 screw cap parts with a flat-blade(-) screwdriver. (Refer to the picture) Before doing the above, make sure that the unit is unplugged. Vertical Hinged Section (center mullion attached to left side refrigerator door) 2. Unscrew 2 screws. 3. Disengage the internal housing connector of the vertical hinge. Before doing the above, make sure that the unit is unplugged. 4. Remove the vertical hinged section by lifting the vertical hinge up. (Refer to the picture) 85 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-18. Evaporator Cover In Refrigerator Part name How to do Descriptive Picture 1. Remove the angle cap with a flatblade screwdriver. (Refer to the picture) Be careful not to scratch or break the parts Evaporator Cover In Refrigerator 2. Loosen the 4 screws, which fix the Evaporator cover 3. Remove the the lower part of angle mid by pulling it out and pushing it down. (Refer to the picture) 86 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-18. Evaporator Cover In Refrigerator Part name How to do Descriptive Picture 4. Lift up the evaporator cover. Evaporator Cover In Refrigerator 5. Disconnect the 2 housing connectors. (Refer to the picture) Before doing the above, make sure that the unit is unplugged. 87 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-19. Evaporator In Refrigerator Part name How to do 1. Descriptive Picture Disconnect the housing connector part on left side. Before doing the above, make sure that the unit is unplugged. Evaporator In Refrigerator 2. Disconnect the housing connector on right side. 3. Remove the evaporator by moving it up while hol ding both of bottom sides 88 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-20. Freezer Door Part name How to do Descriptive Picture 1. Pull out the Pull Out Drawer by maximum. 2. After lifting the Pull Out Drawer up holding both si des, remove it at the rail system. Freezer Door 3. Remove the Tilting Pocket(1)by lifting it up 4. After lifting the Freezer Guard up holding both sides, remove it at the rail system. 89 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-20. Freezer Door Part name How to do Descriptive Picture 5. Press the fixing hook of rail system. Freezer Door 6. After holding and pulling out the top of Freezer D oor, remove it at the rail system. Make sure there is no scratch at the end of Sliding Rail by being dented from the floor . 90 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-21. Convertible Door Part name How to do Descriptive Picture 1. Pull the and remove the convertible room (②) by pulling it to your body with both hands. open to full extension. Mid drawer 2. Remove the cover housing (②) by a flat-blade screwdriver. 3. Disengage the housing. 91 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-21. Convertible Door Part name How to do Descriptive Picture 4. Unscrew 4 bolts. (2 bolts each on the both sides) Mid drawer 5. Lifting up the convertible door. remove the convertible door from the rail. 92 https://appliancetechmanuals.com 4. Disassembly and Assembly 4-22. Ice-Maker Part name How to do Descriptive Picture 1. When pressing the Energy-Saver and the Fridge buttons on the Display together for 8 seconds at the same time, it will convert to the Test Mode and the entire Display function will be off. Ice-Maker 2. When pressing any button within 15 seconds after it is shifted to the Test Mode, its function will change in the following order. Manual operation1(FF) Manual operation2(0F-r) → manual defrost of fresh food compartments(rd) → manual defrost of fresh and freezer compartments(fd) → cancel(Display all off). ● Set unit to Fd for 5 minutes. This will allow for easy removal of the ice maker. 3. While pressing the tab on the top right side, lift up the Ice Bucket and pull it out 93 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-22. Ice-Maker Part name How to do Descriptive Picture 4. Remove the screw from the Wire Housing Cover. Ice-Maker 5. Remove the Wire Housing Cover. 6. Disconnect the Ice Maker Housing Connector. 94 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-22. Ice-Maker Part name How to do Descriptive Picture 7. Remove the screw from the Duct Tray-ice. Ice-Maker 8. With a flat blade screwdriver, push the duct to the right and remove it from the locking tab. (Refer to the image.) 9. With a flat blade screwdriver, pry down on the refrigerant tube to separate it from the bottom of the ice maker. (Refer to the image.) 95 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-22. Ice-Maker Part name How to do Descriptive Picture 10. Push down the refrigerant pipe slightly and separate the refrigerant pipe and the Ice Maker Assembly completely. Ice-Maker 11. While pressing the Hook, pull out the Ice Maker. 12. While pushing down the Duct-Tray-Ice, pull out the Ice Maker carefully and remove it. ※ When removing the ice maker, be careful not to damage the grommets on the tray or the refrigerant tube. (Refer to the dotted parts on the right side photo.) 96 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-23. Auger Motor Fan Part name How to do Descriptive Picture 1. Disconnect the FAN-AUGER-ASSY Connector. Auger Motor Fan 2. Hold the Hook on the bottom of the FANAUGERASSY and lift it up to make it free from the Locking Tab. 3. While lifting it up, take the FAN-AUGERASSY out of the Ice Maker Compartment. 97 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-24. Flex Zone Light Part name How to do Descriptive Picture 1. Remove the cover Convertible lamp(①) by a flat-blade screwdriver. Flex Zone Light 2. Disengage the housing. 98 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-25. Freezer Light Part name How to do Descriptive Picture 1. Remove the cover Freezer lamp like the way disassembling the Flex zone lamp. Freezer Light 2. Disengage the housing. 99 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-26. Side Light Part name How to do Descriptive Picture 1. Remove the cover Side lamp(③) by a flat-blade screwdriver. Refrigerator Light 2. Separate the Side lamp from the case. 3. Disengage the housing. 100 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-27. Door Switch In Freezer Part name How to do Descriptive Picture 1. Remove the freezer drawer bin by using a flatblade(-) screwdriver. (Refer to the picture) Door Switch In Freezer 2. Disconnect the housing connector part. 101 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-28. Evaporator Cover In Freezer Part name How to do Descriptive Picture 1. Remove the freezer door and freezer drawer by pulling out the drawer and then unscrewing 2 screws. Evaporator Cover In Freezer 2. Lift up the evaporator cover. 3. Disengage the 3 housing connectors and remove the evaporator cover. 102 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-29. Evaporator In Freezer Part name How to do Descriptive Picture 1. Remove the housing connector part left one. Evaporator In Freezer 2. Remove the evaporator by pulling the lower part of the evaporator while lifting it up. 103 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-30. Machine Compartment Part name How to do Descriptive Picture 1. Unscrew 5 screws of COVER COMP. 2. Remove the DRAIN HOSE. Motor Fan 3. Remove 1 screw. 4. Disengage the HOUSING CONNECTOR. (Refer to the picture) 104 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-30. Machine Compartment Part name How to do Descriptive Picture 5. Pull it forward and lean against the DRAIN HOSE. Motor Fan 6. Rotate it based on the PIPE. 7. The FAN is disassembled. / Assembly it in reverse order. 105 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-31. Comp Cooling Fan Motor Part name How to do Descriptive Picture 1. Remove the screw with a flat blade screwdriver. Comp Cooling Fan Motor 2. Remove the motor fan by pulling the fan out while graping the motor part. 3. Unscrew 2 screws fixed in the motor. 106 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-31. Comp Cooling Fan Motor Part name How to do Descriptive Picture 4. Remove the BRACKET MOTOR with a flat blade screwdriver. Comp Cooling Fan Motor 5. Remove the MOTOR after pulling the BRACKET MOTOR out. 107 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-32. Relay O/L Part name How to do Descriptive Picture 1. Remove Cover Relay. Relay O/L 2. Remove the relay O/L with a flatblade screwdriver. (Refer to the picture) 108 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-33. COMPRESSOR Part name How to do Descriptive Picture 1. Cut off the LOKRING connecting the COMP and the CONDENSER with a Pipe Cutter. (Red-line marking points) 2. Cut off the LOKRING connecting the CONDENSER and the HOT PIPE with a Pipe Cutter. (Red-line marking points) Relay O/L 3. Link the COMP and the CONDENSER with a PIPE-CONNECTOR (DA81-05659A) by brazing the joint areas. 4. Link the CONDENSER and the HOT PIPE with a PIPE-CONNECTOR (DA81-05659B) by brazing the joint areas. 109 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-34. Electric Box Part name How to do Descriptive Picture 1. Remove the 2 screw attached to the upper left and right Case PCB Panel with a phillips screwdriver(+). PBA Main 2. Disengage all housing connectors from the main PCB. Before doing the above, make sure that the unit is unplugged. 3. Press the lower locking hook down and remove the Main PBA by pulling it out. (Refer to the picture) 110 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-34. Electric Box Part name PBA INVERTER How to do Descriptive Picture 1. Remove the INVERTER PBA by lifting the upper part of the hook up. 111 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-35. Assembling Procedures of the CO2 Cylinder and Precautions Installing a CO2 Cylinder (For Sparkling Water Refrigerators Only - Optional) To use the Sparkling Water feature on your refrigerator, you need to install a Sodastream CO2 cylinder. Purchasing CO2 Cylinders • Purchase cylinders(60L) at the nearest Sodastream retailer or on line at www.sodastream.com. • USE ONLY SODASTREAM carbonators (or CO2 cylinders, 60L). SAMSUNG and SODASTREAM are not legally responsible for any damage, including, but not limited to, property damage caused by gas leakage from the use of generic carbonators (or CO2 cylinders, 60L). The sparkling water system in your SAMSUNG refrigerator is designed to work ONLY WITH SODASTREAM carbonators (or CO2 cylinders, 60L) • We suggest buying extra cylinders(60L) for later use. Store extra cylinders in a cool, open space, well out of the reach of children. Do not store cylinders in the refrigerator. Water Line Hookup • Make sure that you have connected the refrigerator to a water line before installing the cylinder. Installing a Cylinder into the Refrigerator To install a cylinder in the refrigerator, follow these steps: 112 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-35. Assembling Procedures of the CO2 Cylinder and Precautions 1. Open the Cylinder Cover. • The refrigerator comes from the factory with the Sparkling Water function set to Off. If the Sparkling Water function is Off, the OFF icon is displayed on the Display Panel. : Refer to Page 63 ; Turning Off the Sparkling Water Function. 2. Attach the Cylinder to the Regulator, and then rotate it clockwise. 3. Push the Cylinder into the Support. 113 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-35. Assembling Procedures of the CO2 Cylinder and Precautions 4. Lock the Cylinder into place by pressing the Lever. • The inner pressure of the Cylinder may make it difficult to press the lever down. Hold the lever as shown in the illustration on the right, and then push down. • If you don’t lock the cylinder into place, the refrigerator won’t produce sparkling water. • If the cylinder is not tightly connected to the Regulator, it will leak CO2 gas, producing a hiss. If this occurs, repeat Steps 2, 3, and 4, making sure that the cylinder is firmly attached and locked into place. 5. Press the Sparkling Water button 3 seconds for Cylinder Reset function. Wait bout 20 minutes. (the amount of time needed for a medium level of carbonation) while the refrigerator makes sparkling water. • To make sparkling water, the refrigerator injects CO2 from the CO2 cylinder into water stored in the Sparkling Water tank. The water enters the tank through the refrigerator’s water supply line. 6. To remove any residual substances that may be in the water, dispense 2 or 3 large glass fulls of Sparkling Water and empty them into a sink. For more information about using the Sparkling Water function, see Using the Sparkling Water Function. 114 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-35. Assembling Procedures of the CO2 Cylinder and Precautions Using the Sparkling Water Function (For Sparkling Water Refrigerators Only - Optional) With a Sodastream CO2 cylinder, your refrigerator can make and dispense sparkling (carbonated) water. Making Sparkling Water To turn on the Sparkling Water function and make sparkling water, press the Cubed/Crushed button for 3 seconds. When you turn on the function, the Carbonation Level icons light up in rotation (Level-1 → Level-2 → Level-3 → Level-1, etc.) and, within a few seconds, the refrigerator begins to make sparkling water. When production is complete, the Carbonation Level icon rotation stops. If you leave the Sparkling Water Production function on, and the amount of Sparkling Water becomes low, the refrigerator automatically enters the Sparkling Water production mode and makes more. However, if you turn off the Sparkling Water Production function, the refrigerator will not make additional sparkling water, even if there is little sparkling water left in the Sparkling Water tank. 115 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-35. Assembling Procedures of the CO2 Cylinder and Precautions Using the Sparkling Water Function (For Sparkling Water Refrigerators Only - Optional) Sparkling Water Production Time Depending on the Carbonation Level you set (See Setting the Carbonation Level), the amount of time it takes the refrigerator to complete the sparkling water production process changes. The table below lists the production times by Carbonation Level. The refrigerator is pre-set at the factory to Level 2. Carbonation Level Level 3 - Hi Level 2 -Med Level 1 - Low Production Time About 30 minutes About 20 minutes About 10 minutes Capacity 1.16 quarts (1.1ℓ) 1.16 quarts (1.1ℓ) 1.16 quarts (1.1ℓ) Dispensing Sparkling Water To dispense sparkling water, press the Sparkling Water button. Then, push the Ice/Sparkling Water lever gently with a glass. As time passes, the sparkling water dispensing speed can change. When the water tastes strongly carbonated, the dispensing speed can be faster. When the carbonation is weaker, the dispensing speed can slow. The dissolved CO2 in the sparkling water can also cause the water to pop out when you dispense it. In addition, due to the pressure fluctuations in the Sparkling Water Tank, the water stream may shake or become intermittent. If you keep dispensing sparking water, the water stream may become unstable or break up. This is caused by changes in pressure in the Sparkling Water Tank. It is not a defect. 116 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-35. Assembling Procedures of the CO2 Cylinder and Precautions Water Dripping Some time after you have dispensed sparkling water, a few drops of sparkling water can escape from the dispenser. The water dripping is not a product defect, but a natural result of mixing CO2 and water. Controlling the Carbonation Level When the Sparkling Water Icon is turned on, you can change the sparkling water’s carbonation level by pressing the Sparkling Water button for 3 seconds. The carbonation level will change as follows; Medium (Level-2) → Strong (Level-3) → Weak (Level-1) → Medium (Level-2). The change in carbonation level is applied the next time the refrigerator makes sparkling water. - If there is previously produced sparkling water inside the Sparkling Water tank, the refrigerator dispenses sparkling water with the previous carbonation level. (Again, changes in the carbonation level do not take affect until the next time the refrigerator makes sparkling water. The change does not affect sparkling water that is already made.) - While the refrigerator is producing sparkling water, the Carbonation Level icons light up in rotation (Level1 → Level-2 → Level-3 → Level-1, etc.). If you press the Sparkling Water button when the refrigerator is making sparkling water, the current carbonation level is displayed for several seconds. If you press the Sparkling Water button again while the carbonation level is being displayed, the carbonation level changes. The change in the carbonation level will take affect the next time the refrigerator makes sparkling water. - If you change the carbonation level when the refrigerator is making sparkling water, the refrigerator produces sparkling water at the previous carbonation level. 117 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-35. Assembling Procedures of the CO2 Cylinder and Precautions The Carbonation Level is set to Level 2 at the factory. If the sparkling water tastes too strong or too weak, change the carbonation level. Level 1 provides a milder carbonation, Level 3 a stronger carbonation. • If there is a power interruption when the refrigerator is making sparkling water, the refrigerator may restart the carbonation process when power returns and put too much carbonation into the water. If this occurs, we recommend throwing out the overly carbonated water and starting the process again. • The lifetime of the CO2 cylinder can vary, depending on the Carbonation Levels you choose. Turning Off the Sparkling Water Function To turn off the Sparkling Water function, press the Cubed/Crushed button for 3 seconds. Any sparkling water remaining in the Sparkling Water tank after you have turned off the Sparkling Water function can still be dispensed. If you turn off the function when the refrigerator is in the middle of making sparkling water, it halts the function after finishing the current operation. 118 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-35. Assembling Procedures of the CO2 Cylinder and Precautions Replacing a Cylinder When the taste of sparkling water is weak or non-existent, replace the current cylinder with a new cylinder. To replace a cylinder, follow these steps: 1. Lift up the Lever holding the cylinder in place. 2. Pull the Cylinder out of the Support. 3. Rotate the Cylinder counterclockwise to remove it from the Regulator. 4. To install a new cylinder, follow the directions for installing a cylinder starting at Step 2 in Installing a Cylinder into the Refrigerator. 119 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-35. Assembling Procedures of the CO2 Cylinder and Precautions Notes • If you open the refrigerator door while the refrigerator is making sparkling water, it will stop. When you close the door, it will resume making sparkling water in about a minute. • If you keep dispensing sparking water, the water stream may become unstable or breakup. This is caused by changes in pressure in the Sparkling Water Production Tank. It is not a defect. • If the water hose is kinked or water is not supplied properly, the Carbonation Level of the Sparkling Water will be high. This occurs because the Same amount of carbon dioxide (CO2) is dispensed by the Cylinder regardless of the amount of water in the Production Tank. • If the Sparkling Water function is on and you dispense about 1.16 quarts (1.1 L) of sparkling water, the refrigerator automatically begins making more sparkling water. • If you are not going to be home for a long period of time, do not want to use the Sparkling Water function any more, or you are moving: 1. Press the Cubed/Crushed button for three seconds to turn off the Sparkling Water function. 2. Empty the Sparkling Water tank by dispensing all the water in the tank. 3. Remove the CO2 Cylinder. Function to Check the Remaining Quantity of CO2 in the Cylinder for Service Technicians : To check how much CO2 is left in the Cylinder, press the Energy Saver button for 5 seconds with the Fridge Door being open. Then, CO2 will be injected for a second. This function can be used in all conditions; whether it is producing the Sparkling Water or not. 120 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-35. Assembling Procedures of the CO2 Cylinder and Precautions Installing and Using CO2 Cylinders Purchasing CO2 Cylinders(60L) USE ONLY SODASTREAM carbonators (or CO2 cylinders, 60L). SAMSUNG and SODASTREAM will not be legally responsible for any damage, including, but not limited to, property damage caused by gas leakage from the use of a generic carbonator (or CO2 cylinder, 60L). The sparkling water system of SAMSUNG Refrigerators is designed to work ONLY WITH SODASTREAM carbonators (or CO2 cylinders, 60L). Water Tube Hookup Connect the white hose on the back of the refrigerator to water before installing the cylinder. Installing a Cylinder in the Fridge To install a cylinder in the refrigerator, follow these steps: 1. Open the Cylinder Cover. 121 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-35. Assembling Procedures of the CO2 Cylinder and Precautions 2. Attach the Cylinder to the Regulator, and then rotate it clockwise. 3. Push the Cylinder into the Support. 4. Lock the Cylinder into place by pressing the Lever. • If you don’t lock the cylinder into place, the refrigerator won’t produce sparkling water. 5. Press the Sparkling Water button for 3 seconds to turn the Cylinder reset function on. • If you replace the CO2 Cylinder during Sparkling Water Production (The Carbonation Level Icon turns on in the order of 1 → 2 → 3 → 1.), wait until the refrigerator completes production before turning the Sparkling Water Production function back on. Because you interrupted production, the sparkling water may be over carbonated. If you want accurate carbonation level in the next production, you need to empty the tank before you start production. 122 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-35. Assembling Procedures of the CO2 Cylinder and Precautions Because the first 2 glasses of sparkling water dispensed after installation may contain residual substances, throw them out. For information about dispensing sparkling water, see Operating Your French Door Refrigerator. Storing Extra Cylinders Store extra cylinders in a cool, open space, well out of the reach of children. Do not store cylinders in the refrigerator. Replacing a Cylinder If the carbonation level is abnormally low, this means the CO2 cylinder is empty. In this case, we recommend that you replace the cylinder with a new one. To replace a cylinder, follow these steps; 1. Lift up the Lever holding the cylinder in place. 2. Pull the Cylinder out of the Support. 123 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-35. Assembling Procedures of the CO2 Cylinder and Precautions 3. Rotate the Cylinder counterclockwise to remove it from the Regulator. 4. To install the new cylinder, follow the directions for installing a cylinder starting at Step 2. 5. Press the Sparkling Water button for 3 seconds to turn the Cylinder reset function on. • If you replace the CO2 Cylinder during Sparkling Water Production (The Carbonation Level Icon turns on in the order of 1 → 2 → 3 → 1.), wait until the refrigerator completes production before turning the Sparkling Water Production function back on. Because you interrupted production, the sparkling water may be over carbonated. We recommend that you throw out the overly carbonated water. 124 https://appliancetechmanuals.com 4. Disassembly and Assembly To do list 4-35. Assembling Procedures of the CO2 Cylinder and Precautions Operational Notes • Be sure to use genuine Soda Stream Cylinders from authorized resellers. • The refrigerator starts making sparkling water about 10 seconds after you turn on the Sparkling Water Production function. • If you open the refrigerator door while the refrigerator is making sparkling water, it will stop. When you close the door, it will resume making sparkling water in about a minute. • If there is a power interruption when the refrigerator is making sparkling water, the refrigerator may restart the carbonation process when power returns and put too much carbonation into the water. If this occurs, we recommend throwing out the overly carbonated water and starting the process again. • If you keep dispensing sparkling water, the water stream may become unstable or break up. This is caused by changes in pressure in the Sparkling Water Production Tank. It is not a defect. • If the water hose is kinked or water is not supplied properly, the Carbonation Level of the Sparkling Water will be high. This occurs because the the same amount of the carbon dioxide (CO2) is dispensed by the Cylinder regardless of the amount of water in the Production Tank. • The useful life of the Cylinder will vary, depending on the level of carbonation you select. • If you are not going to be home for a long period of time, do not want to use the Sparkling Water function any more, or you are moving: 1. Press the Cubed/Crushed button for three seconds to turn off the Sparkling Water function. 2. Empty the Sparkling Water tank by dispensing all the water in the tank. 3. Remove the CO2 Cylinder. 125 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis 5-1-1. Test mode (manual operation / manual defrost function) • If Energy Saver Key + Fridge Key on the front of panel are pressed simultaneously for 8 seconds , it will be chang to the test mode and all displays on the front of panel will be off. • If any key on the front of panel is pressed within 15 seconds after the test mode, it will be operated as below sequence : Manual operation1(FF) Manual operation2(0F-r) -> manual defrost of fresh food compartments(rd) -> manual defrost of fresh and freezer compartments(fd) -> cancel(Display all off). • If any key on the front of panel is not pressed within 15 seconds after the test mode, the test mode will be canceled and it will be returned to previous mode. 1) Manual operation function RF31FM*S** (For Ice/water model Only) RF31FM*D** / RF24FS**(For Ice/water model Only) ① Energy Saver Key + Fridge Key are pressed simultaneously for 8 seconds, (displays are all off) It will be changed to the test mode (manual operation) by pressing any key 126 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis 1-1) If any key is pressed once in test mode, blinks "FF" on the display and it indicates the refrigerator has entered the manual operation. At this moment, buzzer beeps as an alarm. 1-2) If any key is pressed once at the manual operation1 status, OF-r will be displayed. FF and OF-r means manual operation 1 and 2 separately. These 2 functions operate with same RPM of COMP. 1-3) If manual operation is selected, compressor will run at once without 7 minutes delay in any mode. If the refrigerator is on the defrost cycle at the moment, defrost will be finished and manual operation will begin. (Be careful if manual operation get started at the moment of compressor off, over load could be occurred) Compulsion working 1 : 3600RPM Compulsion working : 3600RPM 1-4) If manual operation works, compressor & f-fan operate continuously for 24 hours and fresh food compartment will be controlled by the setting temperature. 1-5) When the manual operation runs, setting temperature will be selected automatically as below: freezer compartment -8°F(-22℃), fresh food compartment 34℉(1℃). 1-6) During manual operation, Freezer Key & Power Cool function will not work. If a function is selected, the power function icon of the selected function will be off automatically after 10seconds. 1-7) Manual operation can be canceled by removing power from the unit, then resupplying power. 1-8) Alarm(0.25 sec ON/ 0.75 sec OFF) will beep continuously until manual operation is completed and there is no function to make the sound stop. 127 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis 2) Forced Defrost 2-1) When you press any key one more time at Fridge off Forced Operation [OF r], rd lights up on the Display Panel. At this time, the Forcd Operation stops immediately and R-Defrost will be performed at the same time. 2-2) When you press any key one more time at Forced R-Defrost [rd], Fd lights up on the Display Panel. At this time, FR-Defrost will be performed at the same time. 2-3) At this time, it will send out “Beep” sound for 2 seconds and then it will perform Forced F/R Defrost while sending out “0.5 sec On and 0.5 sec Off” sound. 3) Test cancel mode 3-1) During the simultaneous defrosting of fresh food and freezer compartments, if the display panel change to the test mode and test button is pressed one more time, defrosting of fresh food and freezer compartments will be canceled and the unit will return to the normal operation. Or, all test functions will be canceled by turning main power ON and OFF 128 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis 5-1-2. Display function of Communication error 1) Display function when Panel ⇀ MAIN MICOM communication has error 1-1) If there is no answer for 10 seconds after the panel micom received the requirement of communication, "Pc - Er" display on the panel PCB will be ON/OFF alternately until the communication error is canceled. (0.5 sec ALL ON, 0.5 sec ALL OFF alternately) 1-2) “Pc - Er” display on the Pantry Room Display will be ON/OFF alternately until the communication error is canceled. (0.5 sec ALL ON, 1.5 sec ALL OFF alternately) 2) Display function when Panel ⇀ MAIN MICOM OPTION has error 2-1) ”OP - Er” code is repeatedly ON/OFF until Option error settles down. 129 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis 5-1-3. Self-diagnostic function 1) Self-diagnostic function in the Initial power ON 1-1) Micom operates self-diagnostic function to check the temperature sensor condition within 1 second when the refrigerator turned On initially. 1-2) If bad sensor is detected by the self-diagnostic function, the applicable display LED will blink for 0.5 sec. At this moment, there is no beep sound.(Refer to self-diagnostic CHECK LIST) 1-3) Self-diagnostic button is recognized only when the error is displayed by the bad sensor. Display does not operate normally but temperature control will be controlled by the emergency operation. 1-4) When the error is detected by self-diagnosis, the error can be canceled automatically if all troubled sensors are corrected or Self-diagnostic function key (Energy Saver Key + Lighting Key ) are pressed simultaneously for 8 seconds. (Return to normal display mode) RF31FM*S**(For Ice/water model Only) RF31FM*D** / RF24FS**(For Ice/water model Only) ① If Energy Saver Key + Lighting Key are pressed simultaneously for 8 seconds, the error mode by self-diagnosis will be canceled. 130 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis 2) Self-diagnostic function during normal operation RF31FM*S**(For Ice/water model Only) RF31FM*D** / RF24FS**(For Ice/water model Only) ② If Energy Saver Key + Lighting Key are pressed simultaneously for 8 seconds, the error mode by self-diagnosis will be canceled. 2-1) If Energy Saver Key + Lighting Key are pressed simultaneously for 6 seconds during normal operation, the temperature setting display will operate for 2 seconds (ON/OFF 0.5sec each). If Energy Saver Key + Lighting Key are pressed simultaneously for 8 seconds (including above 2seconds), self-diagnostic function will be selected. 2-2) At this moment, self-diagnostic function will be returned with buzzer sound 'ding-dong‘. If there is an error, display of error will be operated for 30 seconds and then return to normal condition whether problem is corrected or not. (Refer to self-diagnosis CHECK LIST) 2-3) Input by button is not accepted during self-diagnostic function. 131 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis * Self-diagnosis CHECK LIST LED F R Item Trouble contents Diagnostic method FZ-Sensor Error When measuring the voltage between the Main PCB CN30-"4" ↔ CN76-"1", it should read between 4.5V~1.0V. FF-Sensor Error When measuring the voltage between the Main PCB CN30-"5" ↔ CN76-"1", it should read between 4.5V~1.0V. FZ-DEF-Sensor Error FF-DEF-Sensor Error Display error : separation of sensor housing part, contact error, disconnection, short circuit. Display error of detecting temperature of sensor : more than 149℉(+65℃) or less than -58℉(-50℃) The voltage of MAIN PCB CN30- “5” ↔ N76-”1”: shall be between 4.5V~1.0V When measuring the voltage between the Main PCB CN30-"8" ↔ CN76-"1", it should read between 4.5V~1.0V. Ambient-Sensor Error The voltage of MAIN PCB CN78- “8” ↔ CN78-”12”: shall be between 4.5V~1.0V Flex room-Sensor Error The voltage of MAIN PCB CN78- “9” ↔ CN76-”1”: shall be between 4.5V~1.0V Humidity-Sensor Error Separation of sensor housing part, contact error, disconnection, short circuit When measuring the voltage between the Main PCB CN30-"3" ↔ CN76-"1", it should read between 4.5V~1.0V. 132 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis * Self-diagnosis CHECK LIST LED F R Item Ice Maker(FF) Sensor Error Ice Room Sensor Error Trouble contents Display error : separation of sensor housing part, contact error, disconnection, short circuit. Display error of detecting temperature of sensor : more than 149℉(+65℃) or less than 58℉(-50℃) Diagnostic method The voltage of MAIN PCB CN90- “1” ↔ CN90-”7”: shall be between 4.5V~1.0V When measuring the voltage between the Main PCB CN78-"10" ↔ CN78-"12", it should read between 4.5V~1.0V. SparklingSensor Error Display error : separation of sensor housing part, contact error, disconnection, short circuit. The voltage of ASSY KIT PCB CN32- “1” Display error of detecting CN32-”3”: shall be between 4.5V~1.0V temperature of sensor : more than 149℉(+65°C) or less than -58℉(-50°C) FZ-FAN Error Display error during operation of applicable fan motor : Feed back signal line contact error, motor wire separation, motor error The voltage of MAIN PCB CN76- “3” (Yellow) ↔ CN76-”1”(Gray): shall be between 7V~12V FF-FAN Error Display error during operation of applicable fan motor : Feed back signal line contact error, motor wire separation, motor error The voltage of MAIN PCB CN76- “4” (Orange) ↔ CN76-”1”(Gray): shall be between 7V~12V 133 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis * Self-diagnosis CHECK LIST LED F R Item Trouble contents Diagnostic method FZ-DEF Error Display error during operation of applicable fan motor : Feed back signal line contact error, motor wire separation, motor error The voltage of MAIN PCB CN76- “5” (Sky-blue) ↔ CN76-”1”(Gray): shall be between 7V~12V FZ-DEF Error Separation of freezer compartment defrost heater housing part, contact error, disconnection, short circuit or temperature fuse error. Display error : the defrosting does not finish though freezer compartment defrost is heating continuously for more than 80 minutes. After separating MAIN PCB CN70 wire from PCB, resistance value between CN70 Brown ↔ CN70 Gray shall be 63(230) ohm ± 7%.(Resistance value is varied by input power) 0 ohm : heater short, ∞ ohm : wire/bimetal open (Must power off) FF-DEF Error Separation of fresh food compartment defrost heater housing part, contact error, disconnection, short circuit or temperature fuse error. Display error : the defrosting does not finish though fresh food compartment defrost is heating continuously for more than 80 minutes. After separating MAIN PCB CN70 wire from PCB, resistance value between CN70 White ↔ CN70 Gray shall be 120(440) ohm±7%.(Resistanc e value is varied by input power) 0 ohm : heater short, ∞ ohm : wire/bimetal open (Must power off) 134 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis * Self-diagnosis CHECK LIST LED F R Item Trouble contents Diagnostic method Ice Maker(FZ) Function Error When the Freezer Ice Maker error occurs more than 3 times, the error will be displayed. After replacing the Ice Maker, check if it operates normal. "Flex ZoneDamperHeater Error" Display error when open error is detected by damper heater : separation of Damper Heater housing part, contact error, disconnection, short circuit. After separating MAIN PCB CN77 wire from PCB, resistance value between Black ↔ Brown wire shall be 135 ohm± 7%. 0 ohm : heater short, ∞ Ohm : wire / bimetal Open. FZ-Ice Pipe Heater Error The error occurs when there is a wire connector slip-out of the Water Supply Pipe Heater, a contact error or a breakage in the wiring. When measuring the resistance of the Main PCB CN79 Yellow-Pink wires, it should be within 102Ω ±7%. 0Ω : heater short, ∞Ω : Check for Wire Open or onnector Slip-out Ice Maker(FF) Function Error Display error when open error is detected by Heater : separation of Ice Pipe Heater housing part, contact error, disconnection, short circuit. After changing the Ice Maker(R), plug the refrigerator power code again, and check the operation. Ice Room-FAN Error Display error during operation of applicable fan motor : Feed back signal line contact error rnotor wire separation motor error. When measuring the voltage between the Main PCB CN76-"5" ↔ CN76-"1", it should read between 7.0V~12V. 135 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis * Self-diagnosis CHECK LIST LED F R Item Trouble contents Diagnostic method Panel ↔ Main Communication Error Display pc - Er in the panel with alarm : MICOM MAIN ↔ PANEL communication error. Actually, If there is not a problem, it is desirable to replace Main and Panel PCB With the oscilloscope after a cable problem confirming. Ice Duct Heater Error Display error when open error is detected by ice duct heater : separation of Ice Duct Heater housing part, contact error, disconnection, short circuit. After separating MAIN PCB CN70 wire from PCB, resistance value between CN70 Brown ↔ CN70 Gray shall be 63(230) ohm ± 7%. (Resistance value is varied by input power) 0ohm : heater short, ∞ ohm : wire/bimetal open(Must power off) Ice Room Bucket Heater Error Display error when open error is detected by ice room bucket heater : separation of Ice Room Bucket Heater housing part, contact error, disconnection, short circuit. After separating MAIN PCB CN79 wire from PCB, resistance value between Yellow ↔ Pink wire shall be 135 ohm± 7%. 0 ohm : heater short, ∞ Ohm : wire / bimetal Open. Comp starting Failure When the Compressor fails starting IPM Fault When there is a IPM Fault error 1. Short between Comp connector (CN04) 2. Short among IPM pins 3. Drop the IPM operating Voltage under DC13.5 [Check the REG1] 4. Other cases, Check the COMP, cycle, 136 etc https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis * Self-diagnosis CHECK LIST LED F R Item Trouble contents Diagnostic method Comp Abnormal current Detection When ther is abnormal crrunt detected at the Compressor 1. When Comp wire is un connected 2. Bad condition of R1 (ex Bad soldering) 3. Other cases, Check the COMP, cycle, etc Motor Locked Over RPM When there is a Compressor restriction error 1. Check the COMP. locking 2. Other cases, Check the cycle. Comp under voltage When there is a low voltage error Comp over voltage When there is a over voltage error Sparkling Tank Overflow Display error when open error is detected by sparkling tank overflow : separation of Sparkling Tank Overflow Sensor housing part, contact error, disconnection, short circuit. 1. Check the Input Voltage 2. Check the Resistor(R309, R310, R311, R312) The voltage of ASSY PCB KIT CN30- “1” CN30-”2”: shall be over 4.5V 137 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis * Self-diagnosis CHECK LIST LED F R Item Water Supply to Sparkling Tank Error Trouble contents Diagnostic method Display error when open error is detected by water supply to sparkling tank error : seperation of Sparkling Tank Water Level Sensor housing part, contact error, disconnection, short circuit. The voltage of ASSY PCB KIT CN31- “1” CN31-”2”:shall be over 4.5V 138 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis 5-1-4. Display function of Load condition RF31FM*S**(For Ice/water model Only) RF31FM*D** / RF24FS**(For Ice/water model Only) ① If Energy Saver Key + Lighting key are pressed simultaneously for 6 seconds, ALL ON/OFF will blink with 0.5interval for 2 seconds. ② If take the finger off from above keys and press Fridge, load condition mode will be started. 1) If Energy Saver Key + Lighting key are pressed simultaneously for 6 seconds during normal operation, the temperature setting display of fresh food and freezer compartments will blink ALL ON/OFF with 0.5 for 2 seconds. 2) At this moment, If Fridge Key after Energy Saver Key + Lighting Key is pressed, load condition display mode will be returned with alarm. At LED all on state, only load condition display will blink ON/OFF with 0.5seconds interval. 3) Load condition display mode shows the load that micom signal is outputting. However, It means that micom signal is outputting, it does not mean whether load is operating or not. That is to say that though load operation is displayed, load could not be operated by actual load error or PCB relay error etc. (This function would be applied at A/S.) 4) Load condition display function will maintain for 30 seconds and then normal condition will be returned automatically. 5) Load condition display is as below. Only the load control LED will blink with 0.5interval in "Display LED" 139 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis * R Load mode Check list Display LED Display contents Operation contents R-1-ⓐ R-FAN High When FF compartment FAN operates with high speed, applicable LED Blink R-1-ⓑ R-FAN Low When FF compartment FAN operates with low speed, applicable LED Blink R-1-ⓒ R-DEF Heater When FF compartment defrost heater operates, LED Blink R-1-ⓓ START MODE When refrigerator is plugged initially, LED Blink R-1-ⓔ Overload condition When ambient temperature is more than 93℉(35°C), LED Blink R-1-ⓕ Low temperature condition When ambient temperature is less than 72℉(21°C), LED Blink R-1-ⓔ,ⓕ (ALL LED Off) Etc Normal Condition When ambient temperature is between 73℉(22°C) and 91℉(34°C) R-1-ⓖ Exhibition Mode LED Blink at the display mode. F-1-ⓐ COMP. When COMP operates, applicable LED Blink F-1-ⓑ F-FAN High When FZ compartment FAN operates with high speed, applicable LED Blink F-1-ⓒ F-FAN Low When FZ compartment FAN operates with low speed, applicable LED Blink F-1-ⓓ F-DEF Heater When FZ compartment defrost heater operates, LED Blink F-1-ⓔ C-FAN High When C-FAN operates with high speed, applicable LED Blink F-1-ⓕ C-FAN Low When C-FAN operates with low speed, applicable LED Blink F-1-ⓖ Sparkling Water To Dispenser Valve When the Sparkling Water To Dispenser Valve operates LED Blink R-10-ⓐ Damper Open When damper open, applicable LED Blink R-10-ⓒ I-DEF HEATER (Ice Maker When ice maker heater operates, LED Blink HEATER) R-10-ⓓ Full Ice When the Ice Maker's Bucket is full, applicable LED Blink R-10-ⓔ Sparkling Water Tank FillUp Detection When water is detected by the Water Fill-Up Sensor in the Sparkling Water Tank (Water is full), the LED blinks. R-10-ⓕ Sparkling Water Tank Low Detection When water is detected by the Water Low Sensor in the Sparkling Water Tank Sparkling Model (Water is Low), the LED blinks. Only Sparkling Model Only Sparkling Model Only 140 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis * R Load mode Check list Display LED R-10-ⓔ,ⓕ (ALL LED Off) Display contents Operation contents Etc Sparkling Water Tank Water Level Detection : EMPTY It is the case in which water is not detected by either the Water Fill-Up Sensor or the Water Low Sensor in the Sparkling Water Tank. It is the condition that it enters the Sparkling Water Production while the Sparkling Water Production function is turned on. Sparkling Model Only Water To Dispenser Valve When the Water To Dispenser valve operates LED Blink Sparkling Model Only F-10-ⓓ Ice Room-FAN High When Ice Room-FAN operates with high speed, applicable LED Blink F-10-ⓔ Ice Room-FAN Low When Ice Room-FAN operates with low speed, applicable LED Blink DC Valve When the DC valve operates LED Blink French Heater When French Heater operates, applicable LED Blink F-10-ⓒ F-10-ⓕ F-10-ⓖ Sparkling Model Only 141 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis 5-1-5. Cooling OFF mode setting function North American(US, Canada) Models Only RF31FM*S**(For Ice/water model Only) RF31FM*D** / RF24FS**(For Ice/water model Only) ① If Energy Saver Key + Freezer Key are pressed for 5 seconds, Exhibition mode will be started. 1) If Energy Saver Key + Power freeze are pressed simultaneously for 5 seconds during normal operation, Cooling Off mode will be started with buzzer sound(ding-dong). 2) If above Energy Saver Key + Power freeze Key are pressed one more time, Cooling Off mode will be canceled. 3) If Cooling Off mode is selected, blinks "O-FF" on the temperature setting display of the panel and it indicates the refrigerator has entered the Cooling Off mode. 4) During Cooling Off mode, if fresh food and freezer compartments sensors are higher than 149 ℉ (65℃) Cooling Off mode will be canceled automatically and freezing operation will be returned. (There is no buzzer sound when the Cooling Off mode is canceled by the temperature) 5) Operation contents of Cooling Off mode - Display, Fan motor and etc operate normally, not to operate compressor only. - Defrost is not operated. (including french heater) - Display function of the initial real temperature is finished. - Under the condition of Cooling Off mode, Cooling Off mode will be operated when Power On after Power OFF. 142 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis 5-1-6. Option setting function ▪ If Freezer Key+ lighting Key are pressed simultaneously for 12 seconds during normal operation, fresh food and freezer compartments temperature display will be changed to option setting mode. KEY operation method for changing to option mode RF31FM*S**(For Ice/water model Only) RF31FM*D** / RF24FS**(For Ice/water model Only) ① If Freezer Key+ lighting Key are pressed simultaneously for 12 seconds, option setting mode will be started. 143 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis 5-1-6. Option setting function ▪ If Freezer Key+ lighting Key are pressed simultaneously for 12 seconds during normal operation, fresh food and freezer compartments temperature display will be changed to option setting mode. KEY control method after converting to option mode RF31FM*S**(For Ice/water model Only) RF31FM*D** / RF24FS**(For Ice/water model Only) * R Key control in option mode Energy Saver Key Code Down key Power Freezer Key Code Up key Lighting key Reference Value down key Power Cool Key Reference Value Up key 144 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis ▪ If the display changes to option setting mode, all displays will be off except freezer and fridge compartments temperature display as below. (Fresh food and freezer compartments case will be explained only because all options are operated with the same method according to the option table.) 1) For example, if you want to change freezer compartment standard temperature to -4℉(-2℃) by operating option, do as below. This function is for changing the standard temperature. In -2℉(-19℃) of current temperature of freezer compartment, if you make the temperature lower to -4℉ (-2℃) by the option, the standard temperature would be controlled -6℉(-21℃)Therefore, if you change the setting of temperature option to -2℉(-19℃) on the panel, the appliance will be operated with -6℉(-21℃). It means that standard temperature is controlled -4℉(-2℃) less than setting temperature in the display. Note Basically, all the data in option has cleared from the factory. Therefore, almost all setting value are "0“. But, some setting values could be changed for the purpose of improving performmance. You need to check the product manual and/or specification. 145 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis 2) After changing to the option mode, fresh food compartment "0" , freezer compartment "0" will be displayed. ( Basically fresh food compartment "0", freezer "0" would be set at shipping process, but setting value could be changed for the purpose of improving product at mass producing process.) - If fresh food compartment "0" shows only, temperature reference value of freezer compartment will be set and current freezer compartment temperature code will be displayed on the freezer temperature display. 3) If freezer compartment "4" is set as below freezer compartment code after fresh food compartment "0 is set, standard temperature of freezer compartment will be lower than -4℉(-2.0℃). (Refer to the picture "changing the freezer compartment temperature") : If you wait for 20 seconds after completing the setting, MICOM will save the setting value to the EEPROM and normal display will be returned and the option setting mode will be canceled. 146 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis 4) Option changing method as above is the same as all RFG29** model. 5) By the same method as above, it is possible to control the fresh food compartment temperature, water supply, ice-maker harvest temperature/time, defrost return time, hysteresis by temperature, notch gap by temperature etc. 6) Option function is set in the EEPROM at shipping process in the factory. You would better not to change the option of your own. Completing the setting is that option function return to normal display after 20 seconds. Do not turn off the appliance before returning to the normal display mode. Note Option setting function exists in the other items. We will skip the explanation of the other functions by the option because it is associated with refrigerator control function and is not needed at SERVICE. (Please do not set the other options except above SERVICE Manual.) 147 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis 5-1-7. Option TABLE 1) Temperature changing table of freezer compartment 2) Temperature changing table of fresh food compartment Set item Freezer Temp Shift Set item fresh food Temp Shift Reference Fridge Room 7-SEG Reference Fridge Room 7-SEG Value 0 Value 1 Setting value Setting value FZ Compartment code Temp. compensation FZ Compartment code Temp. compensation 0 0℉(0.0℃) 0 0℉(0.0℃) 1 -1℉(-0.5℃) 1 -1℉(-0.5℃) 2 -2℉(-1.0℃) 2 -2℉(-1.0℃) 3 -3℉(-1.5℃) 3 -3℉(-1.5℃) 4 -4℉(-2.0℃) 4 -4℉(-2.0℃) 5 -5℉(-2.5℃) 5 -5℉(-2.5℃) 6 -6℉(-3.0℃) 6 -6℉(-3.0℃) 7 -7℉(-3.5℃) 7 -7℉(-3.5℃) 8 +1℉(+0.5℃) 9 +2℉(+1.0℃) ex) If you want to change the freezer standard temperature to -4℉(-2℃) 8 +1℉(+0.5℃) 9 +2℉(+1.0℃) 10 +3℉(+1.5℃) 10 +3℉(+1.5℃) 11 +4℉(+2.0℃) 11 +4℉(+2.0℃) 12 +5℉(+2.5℃) 12 +5℉(+2.5℃) 13 +6℉(+3.0℃) 13 +6℉(+3.0℃) 14 +7℉(+3.5℃) 14 +7℉(+3.5℃) 15 +8℉(+4.0℃) 15 +8℉(+4.0℃) ex) If you want to change the fresh food compartment standard temperature to 4℉(2℃) 148 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis 5-1-7. Option TABLE 3) Operation rate changing table of dispenser heater Set item Dispenser Heater Rate Reference Fridge Room 7-SEG Value 19 4) Temperature changing table of Pantry/Mid Drawer Room Setting value FZ compartment Code Rate change 0 +0.0% 1 + 20% operation ( up to 100% ) Set item Pantry/Mid Drawer Room Temp Shift Reference Fridge Room 7-SEG Value 20 Setting value ex) If you want to change the dispenser heater operation rate to +20% FZ Compartment code Temp. compensation 0 0℉(0.0℃) 1 -1℉(-0.5℃) 2 -2℉(-1.0℃) 3 -3℉(-1.5℃) 4 -4℉(-2.0℃) 5 +1℉(+0.5℃) 6 +2℉(+1.0℃) 7 +3℉(+1.5℃) ex) If you want to change the mid drawer room temperature to -2℉(-1.0℃) 149 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis 5-1-7. Option TABLE 5) Amount of water supply to ice tray Set item Amount of Water Supply Reference Fridge Room 7-SEG Value 32 6) Time changing table of ice maker dropping standby time Set item Ice Maker Standby Time Reference Fridge Room 7-SEG Value 33 Setting value Setting value FZ compartment Code Amount of water supply FZ Compartment code Temp. compensation 0 setting value 0 14min. 1 Setting value + 10cc 1 13min. 2 - 2 12min. 3 - 3 11min. 4 - 4 10min. 5 - 5 15min. 6 - 6 16min. 7 - 7 17min. 8 18min. 9 19min. 10 20min. 11 21min. 12 22min. 13 23min. 14 24min. 15 25min. ex) If you want to change the amount of water supply to ice tray to Setting value + 10cc ex) If you want to change the ice maker dropping standby time to 18minutes. 150 https://appliancetechmanuals.com 5. Check the installation status To do list 5-1. Function for failure diagnosis 5-1-7. Option TABLE 7) Temperature changing table of ice room Set item Ice Room Temp Shift Reference Fridge Room 7-SEG Value 34 Setting value FZ Compartment code Temp. compensation 0 0℉(0.0℃) 1 8) Temperature changing table of Ice Maker Dropping Temperature Set item Ice Maker Dropping Temperature Reference Fridge Room 7-SEG Value 35 Setting value -1℉(-0.5℃) FZ Compartment code Temp. compensation 2 -2℉(-1.0℃) 0 -13℃ 3 -3℉(-1.5℃) 1 -12℃ 4 -4℉(-2.0℃) 2 -11℃ 5 -5℉(-2.5℃) 3 -10℃ 6 -6℉(-3.0℃) 4 -14℃ 7 -7℉(-3.5℃) 5 -15℃ 8 +1℉(+0.5℃) 6 -16℃ 9 +2℉(+1.0℃) 7 -17℃ 10 +3℉(+1.5℃) 11 +4℉(+2.0℃) 12 +5℉(+2.5℃) 13 +6℉(+3.0℃) 14 +7℉(+3.5℃) 15 +8℉(+4.0℃) ex) If you want to change the ice room standard temperature to +5℉(+2.5℃) ex) If you want to change the mid drawer room temperature to -2℉(-1.0℃) 151 https://appliancetechmanuals.com 5. Check the installation status To do list 5-2. Diagnostic method according to the trouble symptom (Flow Chart) DATA1.Temperature table Resistance value and MICOM port voltage of sensor according to the temperature SENSOR CHIP : based on PX41C, PX41C, 502AT/ 103**(ICE MAKER SENSOR(MOLD)/FULL UP, 20Kohm ( Actual measurement = value of the table below X 2 ) ℃ ℉ Voltage Resistance ℃ ℉ Voltage Resistance -50 -58 4.694 153319 -36 -32.8 4.385 71246 -49 -56.2 4.677 144794 -35 -31 4.356 67634 -48 -54.4 4.659 136798 -34 -29.2 4.326 64227 -47 -52.6 4.641 129294 -33 -27.4 4.296 61012 -46 -50.8 4.622 122248 -32 -25.6 4.264 57977 -45 -49 4.602 115631 -31 -23.8 4.232 55112 -44 -47.2 4.581 109413 -30 -22 4.199 52406 -43 -45.4 4.560 103569 -29 -20.2 4.165 49848 -42 -43.6 4.537 98073 -28 -18.4 4.129 47431 -41 -41.8 4.514 92903 -27 -16.6 4.093 45146 -40 -40 4.490 88037 -26 -14.8 4.056 42984 -39 -38.2 4.465 83456 -25 -13 4.018 40938 -38 -36.4 4.439 79142 -24 -11.2 3.980 39002 -37 -34.6 4.412 75077 -23 -9.4 3.940 37169 152 https://appliancetechmanuals.com 5. Check the installation status To do list 5-2. Diagnostic method according to the trouble symptom (Flow Chart) ℃ Voltage Resistance -22 -7.6 3.899 35433 -5 -21 ℉ ℃ Voltage Resistance 23 3.107 16419 -4 ℉ -5.8 3.858 33788 24.8 3.057 15731 -20 -4 3.816 32230 -3 26.6 3.006 15076 -19 -2.2 3.773 30752 -2 28.4 2.955 14452 -18 -0.4 3.729 29350 -1 30.2 2.904 13857 -17 1.4 3.685 28021 0 32 2.853 13290 -16 3.2 3.640 26760 1 33.8 2.802 12749 -15 5 3.594 25562 2 35.6 2.751 12233 -14 6.8 3.548 24425 3 37.4 2.700 11741 -13 8.6 3.501 23345 4 39.2 2.649 11271 -12 10.4 3.453 22320 5 41 2.599 10823 -11 12.2 3.405 21345 6 42.8 2.548 10395 -10 14 3.356 20418 7 44.6 2.498 9986 -9 15.8 3.307 19537 8 46.4 2.449 9596 -8 17.6 3.258 18698 9 48.2 2.399 9223 -7 19.4 3.208 17901 10 50 2.350 8867 -6 21.2 3.158 17142 11 51.8 2.301 8526 153 https://appliancetechmanuals.com 5. Check the installation status To do list 5-2. Diagnostic method according to the trouble symptom (Flow Chart) ℃ ℉ Voltage Resistance ℃ ℉ Voltage Resistance 12 53.6 2.253 8200 29 84.2 1.520 4369 13 55.4 2.205 7888 30 86 1.483 4218 14 57.2 2.158 7590 31 87.8 1.447 4072 15 59 2.111 7305 32 89.6 1.412 3933 16 60.8 2.064 7032 33 91.4 1.377 3799 17 62.6 2.019 6771 34 93.2 1.343 3670 18 64.4 1.974 6521 35 95 1.309 3547 19 66.2 1.929 6281 36 96.8 1.277 3428 20 68 1.885 6052 37 98.6 1.253 3344 21 69.8 1.842 5832 38 100.4 1.213 3204 22 71.6 1.799 5621 39 102.2 1.183 3098 23 73.4 1.757 5419 40 104 1.153 2997 24 75.2 1.716 5225 41 105.8 1.124 2899 25 77 1.675 5039 42 107.6 1.095 2805 26 78.8 1.636 4861 43 109.4 1.068 2714 27 80.6 1.596 4690 44 111.2 1.040 2627 28 82.4 1.558 4526 45 113 1.014 2543 154 https://appliancetechmanuals.com 5. Check the installation status To do list 5-2. Diagnostic method according to the trouble symptom (Flow Chart) ℃ 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 ℉ 114.8 116.6 118.4 120.2 122 123.8 125.6 127.4 129.2 131 132.8 134.6 136.4 138.2 140 141.8 143.6 145.4 147.2 149 Voltage 0.988 0.963 0.938 0.914 0.891 0.868 0.846 0.824 0.803 0.783 0.762 0.743 0.724 0.706 0.688 0.670 0.653 0.636 0.620 0.604 Resistance 2462 2384 2309 2237 2167 2100 2036 1973 1913 1855 1799 1745 1693 1642 1594 1547 1502 1458 1416 1375 ℃ 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 ℉ 150.8 152.6 154.4 156.2 158 159.8 161.6 163.4 165.2 167 168.8 170.6 172.4 174.2 176 177.8 179.6 181.4 183.2 Voltage 0.598 0.574 0.560 0.546 0.532 0.519 0.506 0.493 0.481 0.469 0.457 0.446 0.435 0.424 0.414 0.404 0.394 0.384 0.375 Resistance 1335 1297 1260 1225 1190 1157 1125 1093 1063 1034 1006 978 952 926 902 877 854 832 810 155 https://appliancetechmanuals.com 5. Check the installation status To do list 5-2. Diagnostic method according to the trouble symptom (Flow Chart) DATA2. Humidity Sensor table - Voltage output table @23°…, 5Vdc --- HTG3515CH/HTG3535CH RH(Temperature compensate ) = RH (Relative Humidity ) + ( Temp(℃)。Ⓒ 23 ℃) x 0.05 RH(%) Output(mV) A/D (10bit) A/D (12bit) RH(%) Output(mV) A/D (10bit) A/D (12bit) 0 909 186 744 14 1359 278 1113 1 943 193 772 15 1390 284 1138 2 977 200 800 16 1420 291 1163 3 1010 207 827 17 1450 297 1188 4 1043 213 854 18 1480 303 1212 5 1076 220 881 19 1510 309 1237 6 1109 227 908 20 1540 315 1261 7 1141 233 935 21 1569 321 1285 8 1173 240 961 22 1598 327 1309 9 1205 247 987 23 1627 333 1333 10 1235 253 1011 24 1656 339 1356 11 1266 259 1037 25 1685 345 1380 12 1297 265 1062 26 1713 350 1403 13 1328 272 1088 27 1741 356 1426 156 https://appliancetechmanuals.com 5. Check the installation status To do list 5-2. Diagnostic method according to the trouble symptom (Flow Chart) RH(%) 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 Output(mV) A/D (10bit) A/D (12bit) 1769 362 1449 1797 368 1472 1825 373 1495 1852 379 1517 1879 384 1539 1906 390 1561 1933 395 1583 1960 401 1605 1986 406 1627 2012 412 1648 2038 417 1669 2064 422 1690 2090 428 1712 2116 433 1733 2142 438 1754 2168 444 1776 2194 449 1797 2220 454 1818 2246 460 1839 2272 465 1861 RH(%) 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 Output(mV) A/D (10bit) A/D (12bit) 2298 470 1882 2324 475 1903 2350 481 1925 2376 486 1946 2402 491 1967 2428 497 1989 2454 502 2010 2480 507 2031 2505 513 2052 2530 518 2072 2555 523 2093 2580 528 2113 2605 533 2133 2630 538 2154 2655 543 2174 2680 548 2195 2705 553 2215 2730 559 2236 2756 564 2257 2782 569 2278 157 https://appliancetechmanuals.com 5. Check the installation status To do list 5-2. Diagnostic method according to the trouble symptom (Flow Chart) RH(%) 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 Output(mV) A/D (10bit) A/D (12bit) 2808 575 2300 2834 580 2321 2860 585 2342 2886 590 2364 2912 596 2385 2938 601 2406 2964 606 2428 2990 612 2449 3017 617 2471 3044 623 2493 3071 628 2515 3098 634 2537 3125 639 2559 3152 645 2581 3179 650 2604 3206 656 2626 3233 661 2648 3260 667 2670 3288 673 2693 3316 678 2716 RH(%) 88 89 90 91 92 93 94 95 96 97 98 99 100 Output(mV) A/D (10bit) A/D (12bit) 3344 684 2739 3372 690 2762 3400 696 2785 3426 701 2806 3452 706 2827 3478 712 2848 3504 717 2870 3530 722 2891 3566 730 2920 3595 735 2944 3624 741 2968 3653 747 2992 3683 754 3016 158 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis • The error of sensor will be displayed on the front of display. when the error of sensor is detected at initial power ON, the appliance will not operated and display of abnormal sensor part will blink. • The appliance will not stop operating when the error of sensor is detected during operation of the appliance. But normal freezing might be not operated if the appliance is operated by the emergency operation mode. You would better to check the appliance according to the self-diagnosis of the manual. 1) If ICE Maker(R) Sensor has troubled ERROR Code Start Is MAIN PCB Connector CN90 inserted correctly? NO Bad contact of connector/ insert correctly NO Replace the temperature sensor DATA1. Temperature table ** Measuring point of resistance value according to Sensor ** ICE MAKER: CN90#1↔ #7 measuring resistance value ** 0Ω: Short trouble / ∞Ω: Open trouble Refer to circuit diagram in the manual YES Is ICE Maker Sensor unit normal? YES Sensor MICOM/Connector number ICE Connector CN90-"1"(Brown) and J23 JUMMPER PCB Maker typical Ground Is the voltage between MAIN PCB Connector CN90 - "1"(Brown) and J23 JUMMPER normal? NO (0.6V > Measurement < 4.6V) Recheck the wire connection part Voltage measured between 4.6V ~ 0.6V. 159 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis YES Measuring voltage of IC01 MICOM #71, CN90 - "1" (Brown) and J23 JUMMPER from PCB typical Ground part are similar. → Check the measure on the voltage of Resistance, R914 DUE to the SMD MICOM Is input voltage of IC01 MICOM #71 normal? NO Check the iced-solder, solder bridging, disturbed solder. YES No trouble with PCB and temperature sensor. Recheck the bad contact of the connection. ☞ Checking method of ICE Maker Sensor resistance CN90 "1"(Brown) ↔ "7"(Gray) - Compare the temperature table after the measure. ☞ Checking method of ICE Maker Sensor resistance - Measure the voltage of Resistance R914(IC01 MICOM #71) on PCB or CN90 "1"(Brown) ↔ J23 JUMMPER - Compare the temperature table after the measure. Measuring voltage of CN90-"1"(Brown) ↔ J23 JUMMPER are as below. PCB Typical Ground J23 JUMMPER 160 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis 2) If R Sensor has trouble ERROR Code Start Is MAIN PCB NO Connector CN30 and CN76 inserted correctly? Bad contact of connector/ insert correctly DATA1. Temperature table ** Measuring point of resistance value according to Sensor ** R : CN30 - “6” ↔ CN76-"1" measuring resistance value ** 0Ω: Short trouble /Ω∞: Open trouble Refer to circuit diagram in the manual YES Is R Sensor unit normal? NO Replace the temperature sensor YES Sensor MICOM/Connector number R Connector CN30 - “6”(White) to J23 JUMMPER PCB typical Ground NO NO(0.6V > Measurement < 4.6V) Is the voltage between MAIN PCB Connector CN30 - “6”(White) Recheck the wire connection and J23 JUMMPER normal? part Voltage measured between 4.6V ~ 0.6V. YES 161 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis Measuring voltage IC01 MICOM #84, CN30 - “6”(White) and J23 JUMMPER from PCB typical Ground part are similar. → Check the measure on the voltage of Resistance, R311 due to the SMD MICOM YES Is the input voltage of IC01 MICOM #84 normal? NO Check the iced-solder, solder bridging, disturbed solder. YES No trouble with PCB and temperature sensor. Recheck the bad contact of the connection. ☞ Checking method of R Sensor resistance CN30 - “6”(White) ↔ CN76-"1"(Gray) Compare the temperature table after measurment. ☞ Checking method of R Sensor resistance - Measure the voltage of Resistance R311(IC01 MICOM #84) on PCB or CN30 - “6”(White) ↔ J23 JUMMPER - Compare the temperature table after measurement. Measuring voltage of CN30 - “6”(White) ↔ J23 JUMMPER are as below. PCB Typical Ground J23 JUMMPER 162 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis 3) If R DEF Sensor has trouble ERROR Code Start Is MAIN PCB NO Connector CN30 and CN76 inserted correctly? Bad contact of connector/ insert correctly DATA1. Temperature table ** Measuring point of resistance value according to Sensor ** R-DEF : CN30#8 ↔ CN76#1 measuring resistance value ** 0Ω: Short trouble / ∞Ω: Open trouble Refer to circuit diagram in the manual YES Is R DEF Sensor unit normal? NO Replace the temperature sensor YES Sensor MICOM/Connector Number R DEF Connector CN30-"8"(Skyblue) and J23 JUMMPER PCB typical Ground Is the input voltage between MAIN PCB Connector CN30-”8”(Skyblue) and J23 JUMMPER normal? NO (0.6V > Measurement < 4.6V) Recheck the wire connection part Voltage measured between 4.6V ~ 0.6V. YES 163 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis YES Measuring voltage of IC01 MICOM #86 CN30-"8"(Sky-blue) and J23 JUMMPER from PCB typical Ground part are similar. → Check the measure on the voltage of Resistance R313 due to the SMD MICOM Is the input voltage of IC01 MICOM # 86 normal? NO Check the iced-solder, solder bridging, disturbed solder. YES No trouble with PCB and temperature sensor. Recheck the bad contact of the connection. ☞ Checking method of R Sensor resistance CN30#8(Sky-blue) ↔ CN76#1(Gray) - Compare the temperature table after measurement. ☞ Checking method of R DEF Sensor resistance - Measure the voltage of Resistance R313(IC01 MICOM #86) on PCB or CN30-”8”(Sky-blue) ↔ J23 JUMMPER - Compare the temperature table after measurement. Measuring voltage of CN30-”8”(Sky-blue) ↔ J23 JUMMPER are as below. PCB Typical Ground J23 JUMMPER 164 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis 4) If Ambient Sensor has trouble ERROR Code Start DATA1. Temperature table ** Measuring point of resistance value according to Sensor ** Ambient : CN78#8 ↔ #12 measuring resistance value ** Placed in the right top table of upper hinge. ** 0Ω: Short trouble / ∞Ω: Open trouble Refer to circuit diagram in the manual Sensor MICOM/Connector number Connector CN78"8"(Yellow) to J23 Ambient JUMMPER PCB typical Ground Voltage measured between 4.6V ~ 0.6V. MAIN PCB Connector CN78 inserted correctly? NO Bad contact of connector/ insert correctly NO Replace the temperature sensor YES Ambient Sensor unit normal? YES NO (0.6V > Measurement < 4.6V) Is the voltage between MAIN PCB Connector CN78 ”8”(Yellow) and J23 JUMMPER normal? Recheck the wiring connection YES 165 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis YES Measuring voltage of IC01 MICOM #93 CN78-"8"(Yellow) and J23 JUMMPER from PCB typical Ground part are similar. → Check the measure on the voltage of Resistance, R315 due to the SMD MICOM Is the input voltage of IC01 MICOM #93 normal? NO Check the iced-solder, solder bridging, disturbed solder YES No trouble with PCB and temperature sensor Recheck the bad contact of the connection ☞ Checking method of Ambient Sensor resistance CN78-”8”(Yellow) ↔ "12"(Yellow) - Compare the temperature table after measurement. ☞ Checking method of Ambient Sensor voltage - Measure the voltage of Resistance R315(IC01 MICOM #93) on PCB or CN78-"8"(Yellow) ↔ J23 JUMMPER - Compare the temperature table after measurement. Measuring voltage of CN78-"8"(Yellow) ↔ J23 JUMMPER are as PCB Typical Ground below J23 JUMMPER 166 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis 5) If F Sensor has trouble ERROR Code Start Are MAIN PCB Connector CN30 and CN76 inserted correctly? NO Bad contact of connector/ insert correctly DATA1. Temperature table ** Measuring point of resistance value according to Sensor ** F : CN30-”4” ↔ CN76-”1” measuring resistance value ** 0Ω: Short trouble / ∞Ω: Open trouble Refer to circuit diagram in the manual YES IS F Sensor unit normal? NO Replace temperature sensor YES Sensor MICOM/Connector number F Connector CN30-”4”(Red) to J23 JUMMPER PCB typical Ground Is the voltage between MAIN PCB Connector CN30-”4” (Red) and J23 JUMMPER normal? NO (0.6V > Measurement < 4.6V) Recheck the wiring connection Voltage measured between 4.6V ~ 0.6V. YES 167 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis YES Measuring voltage of IC01 MICOM #82, CN30-”4”(Red) and J23 JUMMPER from PCB typical Ground part are similar. → Check the measure on the voltage of Resistance, R309 due to the SMD MICOM Is the input voltage of IC01 MICOM #82 normal? NO Check the iced-solder, solder bridging, disturbed solder YES No trouble with PCB and temperature sensor Recheck the bad contact of the connection ☞ Checking method of F Sensor resistance CN30-"4"(Red) ↔ CN76-"1"(Gray) - Compare the temperature table after measurement. ☞ Checking method of F Sensor voltage - Measure the voltage of Resistanec, R309(IC01 MICOM #82) on PCB or CN30-"4"(Red) ↔J23 JUMMPER - Compare the temperature table after measurement. Measuring voltage of CN30-"4"(Red)↔J23 JUMMPER are as below. PCB Typical Ground J23 JUMMPER 168 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis 6) If F DEF Sensor has trouble ERROR Code Start Are MAIN PCB Connector CN30 and CN76 insert correctly? NO Bad contact of connector/ insert correctly DATA1. Temperature table ** Measuring point of resistance value according to Sensor ** F-DEF : CN30#5 ↔ CN76#1 measuring resistance value ** 0Ω: Short trouble / ∞Ω: Open trouble Refer to circuit diagram in the manual YES IS FZ DEF Sensor unit normal? NO Replace temperature sensor YES Sensor MICOM/Connector number Connector CN30-"5"(Orange) F DEF to J23 JUMMPER PCB typical Ground Is the voltage between MAIN PCB Connector CN30-”5”(Orange) and J23 JUMMPER normal? NO (0.6V > Measurement < 4.6V) Recheck the wiring connection Voltage measured between 4.6V ~ 0.6V. YES 169 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis YES Measuring voltage of IC01 MICOM #83, CN30-"5"(Orange) and J23 JUMMPER from PCB typical Ground part are similar. → Check the measure on the voltage of Resistance, R310 due to the SMD MICOM Is the input voltage of IC01 MICOM #83 normal? NO Check the iced-solder, solder bridging, disturbed solder YES No trouble with PCB and temperature sensor. Recheck the bad contact of the connection. ☞ Checking method of F DEF Sensor resistance CN30-"5"(Orange) ↔ CN76-1(Gray) - Compare the temperature table after measurement. ☞ Checking method of F DEF Sensor voltage - Measure the voltage of Resistance, R310(IC01 MICOM #83) on PCB or CN30-"5"(Orange) ↔ J23 JUMMPER - Compare the temperature table after measurement. Measuring voltage of CN30-"5"(Orange) ↔ J23 JUMMPER are as below PCB Typical Ground J23 JUMMPER 170 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis 7) If Ice Room Sensor has trouble ERROR Code Start Is MAIN PCB Connector CN78 and CN76 inserted correctly? NO Bad contact of connector/ insert correctly DATA1. Temperature table ** Measuring point of resistance value according to Sensor ** Ambient : CN78 ”10”↔ CN76-”1” Measure the voltage of Resistance value ** 0Ω: Short trouble / ∞Ω: Open trouble Refer to circuit diagram in the manual YES Is Ice Room Sensor unit normal? NO Replace temperature sensor YES Sensor MICOM/Connector number Connector CN78-"10"(Orange) Ice and J23 JUMMPER from PCB Room Typical Ground Is the voltage between MAIN PCB Connector CN78-"10"(Orange) and J23 JUMMPER normal? NO (0.6V > Measurement < 4.6V) Check the wiring connection Voltage measured between 4.6V ~ 0.6V. YES 171 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis YES Measuring voltage of IC01 MICOM #92, CN78-"10"(Orange) and J23 JUMMPER from PCB Typical Ground are similar. → Check the measure on the voltage of Resistance, R316 due to the SMD MICOM Is the input voltage of IC01 MICOM #92 normal? NO Check the iced-solder, solder bridging, disturbed solder YES No trouble with PCB and temperature sensor. Check the bad connections. ☞ Checking Mehod of Ice Room Sensor voltage CN78-"10"(Orange) ↔ CN76-”1” (Gray) - Compare with the temperature table after measurement. ☞ Checking Method of Ice Room Sensor Voltage - Measure the voltage of Resistance, R316(IC01 MICOM #92) on PCB or CN78-"10"(Orange) ↔ J23 JUMMPER - Compare with the temperature table after measurement. Measured voltage of CN78-"10"(Orange) ↔ J23 JUMMPER are as below PCB Typical Ground J23 JUMMPER 172 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis 8) If PANTRY Sensor has trouble ERROR Code Start Is MAIN PCB NO Connector CN30 and CN76 insert correctly? Bad contact of connector/ insert correctly DATA1. Temperature table ** Measuring point of resistance value according to Sensor ** Flex : CN30#9 ↔ CN76 #1 measuring resistance value ** 0Ω: Short trouble / ∞Ω: Open trouble Refer to circuit diagram in the manual YES Is Mid drawer Sensor normal? NO Replace temperature sensor YES Sensor MICOM/Connector number Connector CN30-"9"(Yellow) Mid to J23 JUMMPER PCB drawer typical Ground Is the voltage between MAIN PCB Connector CN30-"9"(Yellow) and J23 JUMMPER normal? NO (0.6V > Measurement < 4.6V) Recheck the wiring connection Voltage measured between 4.6V ~ 0.6V. YES 173 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis YES Measuring voltage of IC01 MICOM #87, CN30-"9"(Yellow)and J23 JUMMPER from PCB typical Ground part are similar. → Check the measure on the voltage of Resistance, R314 due to the SMD MICOM Is the input voltage of IC01 MICOM Pin #87 normal? NO Check the iced-solder, solder bridging, disturbed solder YES No trouble with PCB and temperature sensor. Recheck the bad contact of the connection. ☞ Checking method of Mid drawer Sensor resistance CN30-"9"(Yellow) ↔ CN76-”1” (Gray) - Compare the temperature table after measurement. ☞ Checking method of Mid drawer Sensor resistance CN30-"9"(Yellow) ↔ CN76-”1” (Gray) - Compare the temperature table after measurement. Measuring voltage of CN30-"9"(Yellow)↔J23 JUMMPER are as below PCB Typical Ground J23 JUMMPER 174 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis 9) If Humidity Sensor has trouble ERROR Code Start Is MAIN PCB Connector CN30 inserted correctly? NO Bad contact of connector /insert correctly DATA1. Temperature table ** Measuring point of resistance value according to Sensor“ Humidity : CN30”1”↔ “3” Resistance value with opened : about 50Ω ** 0Ω: Short trouble / ∞Ω: Open trouble Refer to circuit diagram in the manual YES Is Humidity Sensor unit normal? YES Sensor MICOM/Connector number Connector CN30-"3"(brown) Humidity to J23 JUMMPER PCB typical Ground Voltage measured between 4.6V ~ 0.6V. Is the voltage between MAIN PCB Connector CN30-”3”(Brown) and J23 JUMMPER normal? YES NO Replace the Humidity Sensor DATA2. Humidity Sensor Table NO (1.0V > Measurement < 3.5V) Recheck the PCB & Wire Terminal connection 175 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis YES Measuring voltage of ICO1 MICOM #81, CN30-"3"(Brown) and J23 JUMMPER from PCB typical Ground part are similar. → Check the voltage of Resistance, R321 Is input voltage of ICO1 MICOM #81 normal? YES NO Check the iced-solder, solder bringing, disturbed solder Exchange the PCB No trouble with PCB and temperature sensor. Recheck the bad contact of the connection. ☞ Checking method ofHumidity Sensor resistance CN30-"3"(Brown)↔ "1"(Gray) - Compare the temperature table after the measure. ☞ Checking method ofHumidity Sensor voltage. - Measure the voltage of Resistance, R321(IC01 MICOM #81) on PCB or CN30-"3"(Brown) ↔ J23 JUMMPER - Compare the temperature table after the measure. Measuring voltage of CN30-"3"(Brown) ↔ J23 JUMMPER are below PCB Typical Ground J23 JUMMPER 176 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-1. If the trouble is detected by self-diagnosis 10) Mid Drawer Room Damper Heater has trouble (OPTION) ERROR Code Start Is Damper Heater normal?(about135ohm) NO Bad contact of connector/ insert correctly NO 1) Wire connector 2) Replace Heater NO 1) Recheck the wire 2) Replace PCB MAIN YES Measure the voltage of Resistance between ① - ② after CN77 connector open / 1350 ohm ± 7% Is MAIN PCB connector (CN77) inserted correctly? YES MICOM #56 condition Initial power On Heater off Working heater 3.5V ~ 4.8V 3.5V ~ 4.8V 0V Is the input voltage of IC01 MICOM #56 normal? YES Normal(recheck) ☞ Checking method of Flex Zone Room Damper resistance CN77 -"1"(Black) ↔"2"(Brown) ** ∞Ω: Open (wire disconnection, heater disconnection) trouble / 0Ω: Short trouble 177 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-2. IF FAN does not operate • The refrigerator of this model has BLDC FAN motor. BLDC motor is driven by DC 7~12V. • On the normal condition of COMP ON, it operates together with F-FAN motor. If door is opened and closed once at a high ambient temperature, it will be operated after 1 minute delay. Therefore, you are advised not to taken it for an error. • If there is a trouble, you should select the self-diagnostic function to check the trouble before power off. Start NO Is COMPRESSOR ON ? Execute manual operation YES For C-FAN For R-FAN For F-FAN Is the voltage between MAIN PCB J23 JUMMPER and CN 76”5”(Sky - blue) around DC7~12V? Is the voltage between MAIN PCB J23 JUMMPER and CN76”4”(Orange) around DC7~12V? Is the voltage between MAIN PCB J23 JUMMPER and CN76 ”3”(Yellow) around DC7~12V? NO Is the external temperature above 66.2 ℉(19℃ )? NO NO Is the voltage between MAIN PCB Ground J23 JUMPER and CN 76-"12"(Purple) around 0V? YES YES FAN work normally NO Is the voltage between MAIN PCB REG1 Heater Sink and CN30#1 (Black) around 4.5~5V? YES NO Repair the connection of Door switch 178 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-2. IF FAN does not operate NO Recheck after 7 minutes (Time could be delayed depending on the temperatures. If the temperature is lower, It may not operate : about 59℉ (below 15℃) For C-FAN Does DC7~12V alternate with below DC 2V between MAIN PCB Ground J23 JUMMPER and CN76 ”5”(Sky-blue) YES YES YES Door & MICOM State Door F MICOM R MICOM(#28) (#29) Right and Left Close 5V(High) 0V(Low) Open 0V(Low) 5V(High) For R-FAN Does DC7~12V alternate with below DC 2V between MAIN PCB Ground J23 JUMMPER and CN76 ”4”(Orange) Power ON with 7 minutes delay after power OFF. For preventing the over load of compressor) In initial power to appliance, the compressor and fans of fresh food/ freezer, compressor fan operate. If freezer temperature is sensed of 41℉ by momentary power failure, fans will operate after 7 minutes. For F-FAN Does DC7~12V alternate with below DC 2V between MAIN PCB Ground J23 JUMMPER and CN76 “3”(Yellow) NO Replace MAIN PCB Ground YES YES ◆ Expected causes ① Check that if FAN-MOTOR has failure itself. ② Check that if wiring connection has bad contact. ③ Check the input of the fan motor rotation pulse when motor fan operates. 179 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-2. IF FAN does not operate F FAN pulse voltage CN76 “7”(Brown) PCB Typical Ground J23 JUMMPER The voltage measured around 2~3V with multi-meter though the voltage is very weak because of pulse signal ☞ Display for checking the self-diagnostic function R FAN ERROR F FAN ERROR Reference CN76-7(F),8(R),9(C)will generate the pulse signal when motor rotates. These signals will be inputted into MICOM. Unless signals are not inputted during motor operating, will be ON 10 seconds after fan Off. But if signals are not still entered, the above operation will restart four times more. If signals are not entered continuously, the motor will be restarted after 10 Minutes. This function is effective when the normal operation of motor would be restrained by foreign matters such as ice. ☞ The voltage between PCB typical Ground J23 JUMMPER and F FAN ; CN76 ”3”(Yellow) shall be less than DC 7~12V. R FAN ; CN76 ”4”(Orange) shall be less than DC 7~12V. C FAN ; CN76 ”5”(Sky-blue) shall be less than DC 7~12V. - Recheck if resistance values are different after measuring. 1) F-FAN 2) R-FAN 3) C-FAN PCB Typical Ground J23 JUMMPER C FAN ERROR 180 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-3. If ICE Room Fan does not operate • This refrigerator has BLDC FAN motor. BLDC motor is driven by DC7~12V. • When COMP ON, normally operates with F-FAN motor. • If there is any trouble, you should select the self-diagnostic function to check the trouble before power off. - When pressing the ICE TEST S/W for a certain period of time (over 1.5sec), the function is accomplished. After beginning of TEST mode, Ice maker heater turns on for initial 2 minutes, if the ice making temperature is below 0℃. Start - If it exceeds 0℃, Ice maker heater turns on for initial 30 seconds. Is COMPRESSOR ON ? - After Ice maker heater turns on for 30 seconds, it turns off and then Ice maker motor turns on. - As the Ice maker motor turns on, TEST MODE COUNT operates. (6 minutes count) Condition - Ambient temperature : 32℃/75% - Notch : 2℉/38℉(-19.0℃/3.3℃) Initial full of ice bucket capacity : 794 g, 58ea Ice Room control temperature Ice ON 8.6℉ (-13℃) Ice OFF 26.6℉ (-3℃) NO Execute manual operation YES Is the voltage between MAIN PCB Ground J23 JUMMPER and CN76-”2” (Black) around DC7~12V? YES FAN works normally NO Is the Ice Room temperature suitable for the Fan working? NO Operation temperature/ready YES 181 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-3. If ICE Room Fan does not operate YES Reference CN76 “6” will generate the pulse signal when motor rotates. These signals will be input into MICOM. Unless signals are not input during motor operating, will be ON 10seconds after fan OFF. But if signals are not still taken, the above operation will be retried four times more. If signals are not taken continuously, the motor will be restarted after 10 minutes. This function is against the case that motor movement would be restrained by foreign matters like ice. FAN pulse voltage CN76-”6”(Pink) PCB Typical Ground J23 JUMMPER Does DC7~12V alternate with below DC2V between MAIN PCB Ground J23 JUMMPER and CN76-"2"(Black)? YES FAN works normally YES ◆ Predicted Cause ① FAN-MOTOR troubles itself ② Bad wiring connections. ③ Wrong Input of the fan motor rotation pulse ☞ Display for checking the selfdiagnostic function Ice Room FAN ERROR ☞ Checking method of Ice Room FAN Motor Voltage with the voltage between Ice Room FAN ; CN76-"1"(Gry) shall be less than DC 7~12V. - Ice Room FAN Motor Voltage shall be less than DC 7~12V. 1) Ice Room - FAN PCB Typical Ground J23 JUMMPER The voltage is variable due to pulse signal but measured about 2~3V with the Multi-Meter. 182 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-4. When ICE MAKER(FF) does not operate 1. Water will be automatically supplied to the Ice Maker depending on temperature & time conditions, and ice will be produced to dispense. 2. Power is applied to one end of the wires. So, make sure to refer to its Exploded View whenever doing the disassembly. 3. The operation of the Ice Maker shall be done after pressing the Ice Maker Test Button. (Fridge Ice Maker) It is not possible to check when the power is off. 4. Since both of the PCB and the Ice Maker are located at the front and the back each other, make sure to have two people check them. Operating Condition when motor rotates 5. It may cause burn when the Ice Maker Heater heats up. So, please Operating Status of Micom(IC01) take an extra caution. Ready Operation 6. The Ice Maker has a counter-clockwise rotation function. So, its Motor Load counter-clockwise rotation is normal. 0V 5V (#74) Heater Load (#118) Displays ERROR Code #7 (Test Switch) Operation Ready 5V 0V Ice Maker rotates when pressing the Ice Maker testing switch (over 1.5 sec)? YES 5V Heater operates differently according to the conditions. Test Mode operation will be 30 sec. Start MICOM(IC02) Operation Status 0V NO 1) Check & Replace ICE MAKER KIT 2) Check Main PCB Input Signal &Replace it (Micom IC01 Pin #7 - "0V") 183 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-4. When ICE MAKER(FF) does not operate YES MICOM(IC01) Operation Status #73 (Guide Ice Full) Ready Rotation 0V 4.9V Before Returning Complete 4.9V Ice maker Operation Status Home → Motor CCW Rotation → Motor CW Rotation → Water Supply → Normal ('Ding Dong' Sound) 0V Input Voltage of IC01 MICOM #73 is normal? NO 1) Check Wire Connection 2) Check & Replace ICE MAKER KIT 3) Check & Replace MAIN PCB YES Is the water supplied in 6 minutes (After detecting the full bucket and its horizontality)? NO 1) Check & Replace Water Valve * Refer to Water Valve Operating Conditions 2) Check & Replace Main PCB YES Is the ICE Maker Sensor normal? YES NO 1) Check & Repair ICE Maker Sensor * Refer to it when ICE Maker Sensor is defective PCB & Ice Maker Related Parts are Normal.Check all the Wire Connections again. 184 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-5. If defrost does not operate (F,R DEF Heater) • If defrost has trouble, select the self-diagnostic function to detect the error of defrost heater before Power Off. (Check the function with the self-diagnostic function) R DEF ERROR **Measuring point of resistance value according to heater** F-DEF : CN70 “3”(Brown) ↔ CN72 ”3” (Gray) measuring resistance value(63 ohm ± 7%) R-DEF : CN70 ”1”(White) ↔ CN72 “3”(Gray) measuring resistance value(120 ohm ± 7%) ** 0Ω: Short trouble / ∞Ω: Open(bimetal, heater) trouble Reference to the manual “Self-Diagnostic” F DEF ERROR Start Are the all deforst heater normal? NO Refer to self-diagnostic function in the manual YES Is defrost sensor by self-diagnostic normal? Check the bimetal, heater disconnection, wiring connection etc. NO Replace the applicable sensor YES 185 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-5. If defrost does not operate (F,R DEF Heater) **Measuring point of resistance value according to sensor ** F-DEF : CCN30-”5” ↔ CN76-”1” measuring resistance value R-DEF : CN30-”8” ↔ CN76-”1” measuring resistance value ** 0Ω: Short trouble / Ω∞: Open trouble YES Is the temperature of defrost sensor lower than 53.6℉(12℃)? 4.22㏀ 68℃ (20℉) 6.05㏀ 50℃ (10℉) 8.87㏀ 32℃ (0℉) 13.29㏀ 14℃ (-10℉) 20.42㏀ -4℃ (-20℉) 32.23㏀ -22℉(-30℃) 52.41㏀ If Energy Saver + Fridge Key are pressed simultaneously for 8seconds and then select any key, 3rd test mode(manual defrosting) will be operated. Manual defrosting of fresh food and freezer compartments operate simultaneously. If you need the temperature with detail, refer to DATA1. temperature table Recheck the applicable sensor. manual operation for a certain time YES Resistance value of sensor according to temperature 86℃ (30℉) NO YES Is power applied to each defrost heaters? NO YES NO Reference If defrost sensor temperatures of fresh food and freezer compartments are higher than 50℉(10℃), 53.6℉(12℃) by the heating from heater, heating would be finished and will return to cooling operation after a pause. Does the system return to cooling operation after heating for specified time? YES Normal 186 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-5. If defrost does not operate (F,R DEF Heater) Is connection terminal of MAIN PCB part normal? NO Repair connection terminal YES Check bimetal, heater itself, disconnection etc. Replace failure Relay or replace PCB ASS'Y ☞ Checking method of F,R DEF Heater resistance value CN70-"3"(Brown) ↔ CN72 "3"(Gray) CN70-"1"(White) ↔ CN72 "3"(Gray) - Recheck if resistance values are different after the test 1) F DEF Heater 2) R DEF Heater 187 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-6. When Power is not applied [Caution] There is Over AC 115V and DC 310V at the Inverter PCB Power Circuit. So,be cautious when repairing the unit or measuring values.. Start Is FUSE on PCB Down? - To check the Inverter PCB, refer to the Operation and'Refer' sections in this manual YES Replace Fuse AC 250V 6.3A NO Is DC 300V applied between both ends of BD1+,-? NO Replace the Inverter PCB YES IS DC 13.2V applied to C121? YES Replace the Inverter PCB NO IS DC 15V applied to C108? NO Replace REG1(7815) YES 188 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-6. When Power is not applied YES IS DC 5V applied to C111? NO Replace REG2(5V LDO) YES IS DC 5V applied to C118? NO Replace REG3(5V LDO) YES Does PANEL PCB work normal? NO 1) Check the wire harness 2) Replace PANEL PCB YES - Check MAIN PCB Wire - Check DOOR PANEL PCB Is there any PCB soldering short or breakage? NO Replace the Inverter PBA YES Normal 189 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-7. When Compressor does not run (Inverter COMP.) Start 10 minutes have passed since COMP was off NO YES Refer to the TEST Function in this manual When Forced Operation mode is activated, COMP operates Forced Operation signal sound should be checked 0~800Hz 50% Duty Signal Output NO 1) Check the wire harness 2) Replace the MAIN PCB NO YES YES COMP operation signal(CN103 #4&#6) is High(about 2-2.5V) YES Is DC 15V applied to ZD501? Replace INVERTER PCB YES Check in 10 minutes NO F-Sensor is Good YES Temperature sensing part of MAIN PBA is Good YES NO Replace F-Sensor NO Repair the sensing part or Replace MAIN PBA Replace MAIN PB A or Repair the connection 190 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-7. When Compressor does not run (Inverter COMP.) YES COMP Connector(CN04) is Good NO 1) Check the COMP Wire 2) Check the Compressor YES COMP ASS'Y is Good YES NO Replace COMP ASS'Y Normal 191 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-8. When alarm sounds continuously without stop (related with buzzer sound) 1) If 'ding-dong'sound continuously Start Is door closed completely? Door is ajar Remove causes after compre hending the conditions of int erferance by door gasket, food etc, YES Is water penetrated into the door switch? Seperate the door switch andcheck if the measured value of unit is changed from 0Ω to Ω∞ according to switch ON/OFF. * FF Door Switch is magnetic switch. ( It can be operated when door magnet is combined with it.) YES Replace Door S/W NO Is the door switch unit normal? NO Replace Door S/W YES Is the connector CN76 inserted correctly? NO Connector is not inserted, Repair disconnect part YES 192 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-8. When alarm sounds continuously without stop (related with buzzer sound) 1) If 'ding-dong‘ sound continuously Door & MICOM State FZ MICOM(#29) Mid-drawer Micom(#27) FZ MICOM(#28) Close 0V(Low), 0V(Low) Open 5V(High) 5V(High) Door Right and Left YES Is the input voltage of main #29,#28 changed at door-open and close status? NO Repair wire connection and Door S/W YES MAIN PCB & Door S/W is normal. Recheck and replace Panel PBA 193 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-8. When alarm sounds continuously without stop (related with buzzer sound) 2) If 'beep-beep' sounds continuously Start Is manual operation /defrost selected? YES Enforce the cancelation the manual operation/ defrost function or power On after power Off NO Does buzzer sounds when power On again? NO Normal YES Recheck and Replace Panel PBA 194 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-8. When alarm sounds continuously without stop (related with buzzer sound) 3) If buzzer does not sound Buzzer is installed on the panel PCB in this model. If buzzer does not sound even though the button is pressed, manual operation is started and door is opened, it should separate panel PCB and check the breakage of buzzer and bad soldering. It is very hard to repair the panel PCB because it consists of SMD assemblies. It is recommended to replace PCB assembly when the failure associated with panel is occurred except the minor error such as switch pressing error, surface peeling off and so on. Start Does it sound 'dingdong' if press a button on the front panel? YES MAIN PCB normal, BUZZER normal NO Does it make a sound of door open alarm when you are YES opening the door of freezer or Fridge more than 3 minutes? Check the panel PCB with reference of <how to check Panel Display> NO 195 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-8. When alarm sounds continuously without stop (related with buzzer sound) 3) If buzzer does not sound NO Is there any damage or breakage of the buzzer in the panel PCB? YES Replace Panel PCB NO Did lead of a component fall on the vibration plate of buzzer? YES Replace Panel PCB NO Recheck the button pressing force and mechanical problem 196 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-9. When the Panel PBA does not operate normally 1) When the entire or a certain section of the Panel PCB does not light up - There is a MICOM embedded in the Panel PCB. So, take care when doing repairs. And, except the Solder Touch, replace the PCB. Start Refer to the Circuit Diagram of this manual or the Wiring Diagram attached at the back of the unit. Is the connetor insertion of freezer upper-hinge nomal? NO Insert Connector again Repair the contact trouble YES MAIN PCB Connector (CN50) is inserted normally? NO Insert MAIN PCB Connector again YES The Panel PCB Connecter is connected properly? NO Insert Connector again Repair the contact trouble YES 197 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-9. When the Panel PCB does not operate normally YES When replacing Panel-PCB, it lights up? YES Replace Panel PCB NO ① Check the Dispenser and the Top Cover Hinge Connectors. Check the Wire Cut and the Wire Short. ② Check the wire connection between the Fridge Top Cabinet and the Main PCB Connector. Check the Wire Cut and the Wire Short. 2) When the Panel PCB buttons do not work ※ When it keeps troubling after check with the above procedures [Check after turning off the unit and turning it on again] Buttons get stuck being pressed down? YES Re-assemble PCB ASS'Y or clear the restriction NO 198 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-9. When the Panel PCB does not operate normally NO Buttons get stuck being pressed down? YES Re-assemble PCB ASS'Y or clear the restriction NO Buttons get stuck being pressed down? YES Replace Panel PCB NO ① Check the Dispenser and the Top Cover Hinge Connectors. Check the Wire Cut and the Wire Short. ② Check the wire connection at the Fridge Top Cabinet. Check the Wire Cut and the Wire Short. ③ Check Short/Open at the Panel Communication & the Power Supply Circuit of the Main PCB Since all Touch is used for the Panel PCB Switch, be sure to turn off the unit and turn it on again after doing a repair. [It is to adjust the sensitivity of the Touch Panel.] 199 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-10. If Pantry Panel PCB is not working normally You should check the display after door opening because the display of this model operates only when the Flex Zone Room compartment door is opened. Start Does R room Door switch operate normally? NO Check and repair the switch * Refer to <how to repair door switch> YES Is the connector of pantry room inserted correctly NO Reinsert Connector, Repair ba d contact YES Is MAIN PCB Connector (CN51) inserted correctly? NO Reinsert connector in MAIN PCB YES Is signal of MAIN PCB CN51 normal? NO Check voltage/Replace MAIN PCB YES 200 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-10. If Pantry Panel PCB is not working normally If Panel Key is not selected YES Is the lighting operated when replace Pantry Panel-PCB? YES Panel PCB itself has trouble. NO ① Check the wires of Pantry Room - disconnection, short between wires ② Recheck the control circuit of MAIN PCB Pantry Panel ③ Check the wire assembling between Panel and MAIN ② If Panel PCB Key is not selected ※ If it is not repaired with the above basic checking method Is a key pressed continuously? Pressed Reassemble PCB ASS'Y / Enforce the cancelation of pressed keys NO Is the PCB system still operated by separating of the mechanism? Operated by separation Reassemble PCB ASS'Y / Enforce the cancelation of pressed keys NO 201 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-11. If Pantry Panel PCB is not working normally PCB Typical Ground J23 JUMMPER The Voltage of KEY is Working every 2m sec/4min NO Is the lighting operated after replacing the Pantry Panel-PCB? YES Convertible compartment Panel PCB itself has trouble. NO ☞ Checking method of voltage Based on PCB typical Ground J23 JUMMPER 1) Key voltage ; CN51-"11"(Sky Blue) a) Working: 2V±0.5V b) Normal: 0V Is a normal voltage outputted from MAIN PCB IC51 during the key operating? NO ① Replace MAIN PCB ② Check the short of MAIN Panel wire YES ① Check the wire of Pantry Room - disconnection, short between wires ② Check the short/open of the pantry panel lighting circuit in MAIN PCB. 202 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-12. When refrigerator ROOM Lamp does not light up When controlling the refrigerator light with Regulator(12V) : LED LAMP → Applying to the F/R/Flex Zone Room compartment (Option) * If the Vegetable Lamp does not work properly, check the R compartment LED Lamp because it is connected with the R compartment LED Lamp in parallel. Refer to the circuit diagram to repair. Door & MICOM State Start MICOM(#28) Door Right and Left Close 0V(Low) Open 5V(High) Does the DOOR S/W sense properly? (Open/Close) MICOM State Door (Right and Left) FF FZ #28 #29 Close 0V(Low) 0V(Low) Open 5V(High) 5V(High) IC76(R)/IC77(F) State MICOM IC76(R) / IC77(F) 0V(Low) 0V(Low) 5V(High) 11~12V(High) NO Check/Replace REED S/W, Magnet ASS`Y YES Is the output voltage of IC01 MICOM #28 normal? NO Replace/Repair the PCB YES Is the output voltage of IC76 normal? NO Replace/Rep air the PCB. Repair IC76 YES 203 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-12. When refrigerator ROOM Lamp does not light up Is the MAIN PCB connector(CN78) inserted properly? NO Check the wire Re-insert the connector NO Check the connector terminal Replace PCB NO Check the connector terminal YES Does the MAIN PCB connector(CN78) output properly? (11~12V) YES Is the LED LAMP connected properly? YES Is the LED LAMP normal? NO Replace LED LAMP YES Normal 204 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-12. When refrigerator ROOM Lamp does not light up 1) Measuring output voltage - Measuring the voltage of PCB typical Ground J23 JUMMPER and IC76 voltage( CN78-"3"(Red)/R LED), IC77 voltage (CN78-"1"(Brown)/F LED) R LED Lamp ON Checking method of Door switch voltage. - Measuring voltage of CN76-"12")(Purple) ↔ PCB typical Ground J23 JUMMPER CLOSE PCB Typical Ground J23 JUMMPER R LED Lamp OF OPEN 205 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-13. If ICE Water is not supplied 1. Please shut the water supplying prior to repair. 2. Power is applied to the one end of wires. Be careful when disassembling not to get an electric shock. 2) Ice Water(R) Valve PCB Typical Ground J23 JUMMPER Start Is the confirming sound of the valve operation heard when YES Ice maker test switch pushed? Normal(Check Ice water valve hose) NO Does Main PCB IC01 MICOM #7 voltage change 5V/0V? NO Check soldering short/Replace PCB NO Check soldering short/Replace PCB YES Does Main PCB IC01 MICOM #117 voltage have high(5V) output? YES 206 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-13. If ICE Water is not supplied ☞ Checking method of voltage Based on PCB typical Ground J23 JUMMPER 1) Check the voltage of IC73-"4"(same voltage as IC01 “104”) - ICE Water valve waiting (about 0V) YES Is the contact point of main PCB RELAY RY73 normal? NO Check soldering short/Replace PCB NO Check soldering short/Replace PCB NO Check soldering short/Replace PCB NO Check soldering short/Replace PCB YES Does Main PCB IC01 MICOM #104 voltage have high(5V) output? Based on PCB typical Ground J23 JUMMPER 2) IC73-"13" voltage - ICE Water valve Waiting (about 12V±0.8V) - ICE Water valve operating (about 0.7V±0.5V) YES Does Main PCB IC73-"13" have about 0.7V output? YES Is the contact point of main PCB RELAY RY78 normal? YES 207 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-13. If ICE Water is not supplied 3) Check the voltage of Water Valve operating(AC voltage) => For checking the Relay RY78 operating. CN70-"5"(Red) ↔ CN73_1-"1"(Purple) - ICE Water valve waiting (about AC 0V) YES MAIN PCB normal -- Need to check the other parts ① Check the wire between Ice water valve↔MAIN PCB ② Ice water valve itself has trouble or bad contact of connector ③ Check the connection hose 208 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-14. If Sparkling is not supplied 1. Please shut the water supplying prior to repair. 2. Power is applied to the one end of wires. Be careful when disassembling not to get an electric shock. 3. Check the Door while it is being closed. (By using a magnet stick, simulate a door-closed condition.) Start Is the Switch of the Dispenser Lever mounted correctly? NO Replace the Dispenser Assy NO Select the Sparkling Function YES Is the Sparkling function selected on the Display Panel? YES Is the production of sparkling water not completed? YES Standby NO 209 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-14. If Sparkling is not supplied YES Does the Main Valve work properly? NO Refer to the troubleshooting guide for “ICE Water is not supplied” on Page 188. NO Refer to the troubleshooting guide for “ICE Water is not supplied” on Page 188. NO Refer to the troubleshooting guide for CO2. NO Is it normal when checking it with the Panel Diagnosing Kit? NO Is it normal when checking it with the Panel Diagnosing Kit? YES Is the Water Valve normal? YES Is CO2 left in the canister? YES Is the CO2 Valve normal? YES Is the water section of the 3-Way Valve normal? YES Is the Vent Valve normal? NO NO Replace the Panel Is it normal when checking it with the Panel Diagnosing Kit? YES 210 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-14. If Sparkling is not supplied YES Is the Dispenser Valve of the 3-Way Valve normal? NO Is it normal when checking it with the Panel Diagnosing Kit? NO YES Is the DC Valve on the Discharge Port of the Dispenser? NO Replace the Panel Is it normal when checking it with the Panel Diagnosing Kit? YES Check the above steps again and replace the CO2 kit if no problem found. NO YES Is the Wire Connector between the Panel and the Sparkling Water Control PBA linked properly? NO Repair or Replace the Door Replace the Dispenser Assy. YES Replace the Sparkling Water Kit Refer to the Exploded View of the Sparkling Water Kit 211 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-15. If Cubed or Crushed Ice is not supplied Start Are Ices ejected? YES Fridge door shall be closed during operation. NO Are Ices in the Ice bucket? ① Check the Ice making switch ② Check the DOOR Switch ③ Check the Ice moving motor ④ Check the wiring connections of Ice moving motor ⑤ Check if the COVER ICE ROUTE opens ⑥ Check the Q706 movement related with AUGER_MOTOR safety Which mode is selected? NO Is “Ice Off” mode selected on the display panel? YES Cancel the “Ice Off” NO ① Check the water pipe : bending / Shut off ② heck route of ice check solenoid ③ Check he Ice Maker wiring Crushed Ice Cubed Ice 212 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-15. If Cubed or Crushed Ice is not supplied Cubed Ice Is Cubed Ice ejected? Cubed Ice ejected Normal Operation status NO Is Cubed Ice mode selected on the panel PCB? NO NO NO YES Is the Dispenser Cover opened? NO YES Is IC73 #1,2 changed into 5V when pressing Ice Switch? YES Normal Operation status Cubed Ice selected NO Is Crushed Ice mode selected on the panel PCB? Crushed Ice selected YES YES Is MICOM IC01 #88 change into 0V when press Ice switch? YES NO YES Is the CUBE MOTOR positioned at cubed ice mode? Is Crushed Ice ejected? NO Check the wire connections/ Cube Solenoid - Check the Ice switch has trouble itself - Check the wire connections - Replace the MAIN PCB Is the CUBE MOTOR positioned at cubed ice mode? NO YES Is MICOM IC01 #88 change into 0V when press Ice switch? NO YES - ICE S/W self diagnosis - Check the connecting wires. - MAIN PCB failure : Replace Is the Dispenser Cover opened? Replace the MAIN PCB (Errors on IC01) Is IC73 #1 changed into 5V when pressing Ice Switch? NO YES NO Check the wire connections/ Motor Cube - Check the Ice switch has trouble itself - Check the wire connections - Replace the MAIN PCB check the WIRE & Motor check Cover ice route S/W 1,2 Replace the MAIN PCB Replace the MAIN PCB (Errors on IC01) YES 213 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-15. If Cubed or Crushed Ice is not supplied YES Is the contact point of RY7A & RY7B RELAY changed into 0Ω NO - RY7A, RY7B RELAY Error - Replace the MAIN PCB Is the contact point of RY7A RELAY changed into 0Ω - RY7A RELAY Error - Replace the MAIN PCB YES YES After disconnecting the CN72, CN73 measure The both ends of Contact points RY7A. NO After disconnecting the CN72, CN73 measure The both ends of Contact points RY7A. If MAIN PCB is normal - Need to check the other parts ① AUGER MOTOR ↔ MAIN PCB Check the door wiring connections. ② CUBE MOTOR ↔ MAIN PCB Check the door wiring connections/trouble their own or bad wiring connections. 214 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-16. If Cover Ice Route Motor(Geared Motor) is not working normally [Caution] 1. When replacing the Cover Ice Motor, pull out the plug to avoid an electric shock. 2. Be careful! When disassemble the Cover Ice Motor, spring can jumped out and may cause personal injury. 3. Motor will rotate continuously when the Motor Switch is not sensed. ☞ Checking Mehod of Cover Ice Route Motor Resistance (Make sure to work after Power Off) the voltage of Resistance is variable according to the input voltage. CN70 -"5" (Red) ↔ CN73_1 -"3" (Blue) ** 0Ω: Short trouble / Ω∞: Open trouble Start Does GEARED MOTOR work properly? NO Replace the MOTOR YES Is Cubed or Crushed Ice mode selected on the LED PANEL? NO Cubed or Crushed Ice is selected on the LED PANEL PCB YES Is the DISPENSER switch selected? NO Select the DISPENSER switch YES Does the wiring at the both sides of motor connected properly? NO Check the WIRE 215 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-16. If Cover Ice Route Motor(Geared Motor) is not working normally When the MOTOR rotates. YES Is the AC input voltage applied to the both ends of the motor? YES Check the MOTOR/Check any interference on MOTOR rotation NO ① Check CN73_1-"3" Connector / Re-connect ② Check the short/open for the SSR75 of Cover Ice Motor on Main PCB. ③ Check the voltage of Resistance of parallel Connector CN73 -"3", CN70 -"5“ (Definitely plug out prior to repair) Is the sensing SWITCH connection normal? NO Check/Repair the Housing connector NO Check/Repair the Motor Rotation pressing area YES Is the switch pressed area normal when motor rotates? YES 216 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-16. If Cover Ice Route Motor(Geared Motor) is not working normally YES Operating Condition of Dispenser Open/Close CN50 - Switch 1,2 Operating Close ing Open Ice Route Switch 1 CN50 - “9” (Purple) 0V 5V 0V Ice Route Switch 2 CN50 - “10” (White) 0V Are the voltage J23 JUMMPER and CN50-”9”, “10” normal? YES Normal NO 5V 0V ① Main PCB - Check the wire OPEN/SHORT between the Cover Ice Motor Rotation sensing switches. ② Check the Short of Cover Ice Motor Control Circuit SSR75 in the MAIN PCB. ③ Replace the MAIN PCB or the Dispenser Cover Motor. 217 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-17. IR Sensor Trouble-Shooting 1. When the IR sensor is defective, ice is not produced even if there is no Ice Maker Error, Ice Maker Sensor Error or the Ice Maker Function Error. (When turning on the Self Diagnosis Function, it does not produce ice even if there is no 14E, 15E or 39E being displayed.) 2. Proceed with the Fridge Door being open and the Ice Bucket being removed. Start Remove the Ice Bucket and turn on the Load Status Display Function. Indicator Location for Ice Full in Fridge Blinking : Ice Full Keep On : Not Ice Full NO Ice Full in Fridge Room YES Take a photo of the Emitter with the Cell Phone. Block the Receiver with a hand. 218 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-17. IR Sensor Trouble-Shooting NO The Emitter is on. Fridge : Changes to Ice Full YES Receiver Defect NO YES Emitter Defect Receiver Normal Emitter Normal Receiver Defect 219 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-18. LED blinking frequency depending on protecting functions If Failure Condition is detected during compressor is operating, immediately stop Compressor operating and stand by 5 minutes. During this 5 minutes, RPM command signal is not available. It means, even if available RPM command signal is applied to the compressor, it does not work and keep standing by. Blinking time is 1 second and dwell time is 2 seconds. LED Blinking Frequency Protecting Functions Remarks Normal Operation N/A Starting Failure SPM Fault Abnormal Current Detection Motor Locked / Over RPM Under Voltage Over Voltage 1. 2. 3. 4. Short between COMP U,V, and W phase(CN04) Short among IPM Pins(No. #1 ~ 26) Drop the IPM operating Voltage under DC 13.5V Other cases, check the COMP, cycle, etc. 1. Open the COMP wire(CN04) 2. Bad condition of R1(ex. Bad soldering.) 3. Other cases, check the COMP, cycle, etc. 1. Operating the locked rotor COMP within 5 second. 2. Operating the COMP under 1000 RPM more than 5second. 3. Occur the huge change of input voltage in a moment 4. Other cases, check the COMP, cycle, etc. 1. Drop the input voltage under AC 53V 2. Short resistor R312(DC link resistor) 1. Increase the input voltage over AC 155V 2. Short resistor among R309, R310 and R311 (DC link resistor) 220 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-19. General diagnosis PROBLEM SOLUTION The refrigerator does not work at all or it does not chill sufficiently. • Check that the power plug is properly connected. • Check if the set temperature on the digital display is warmer than the freezer or fridge inner temperature. If it is, set the refrigerator colder. • Is the refrigerator in direct sunlight or located near a heat source? • Is the back of the refrigerator too close to the wall, preventing proper ventilation? The food in the fridge is frozen. • Check if the set temperature on the digital display is too low. • Try setting the refrigerator to a warmer temperature. • Is the temperature in the room too low? Set the refrigerator warmer. • Did you store the food which is juicy in the coldest part of the refrigerator? Try moving those items to the other shelves in the fridge instead of keeping them in the colder areas or bins. You hear unusual noise or sounds. • Check that the refrigerator is level and stable. • Is the back of the refrigerator too close to the wall, preventing proper ventilation? Try moving the back of the refrigerator at least 2 inches from the wall. • Was anything dropped behind or under the refrigerator? • A “ticking” sound is heard from inside the refrigerator. It is normal and occurs because various accessories are contracting or expanding according to the temperature of the refrigerator interior. • If it sounds as if something is hitting something else inside the refrigerator, this is normal. The sound is caused by the compressor operating at high capacity. 221 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-19. General diagnosis PROBLEM SOLUTION The cabinet-door Sealing area of the Appliance is hot and Condensation is occurring. • Some heat is normal as anti-condensators are installed in the vertical hinged section of the refrigerator to prevent condensation. • Is the refrigerator door ajar? Condensation can occur when you leave the door open for a long time. Ice Maker is not producing ice. • Did you wait for 12 hours after installation of the water supply line before making ice? • Is the water line connected and the shut-off valve opened? • Did you manually stop the ice making function? • Is the freezer temperature too warm? Try setting the freezer temperature lower. You can hear water bubbling in the refrigerator. • This is normal. The bubbling comes from refrigerant circulating through the refrigerator. There is a bad smell in the refrigerator. • Check for spoiled food. • Foods with strong odors (for example, fish) should be tightly covered. • Clean out your freezer periodically and throw away any spoiled or suspicious food. 222 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-19. General diagnosis PROBLEM SOLUTION Frost forms on the walls of the freezer. • Is the air vent blocked? Remove any obstructions so air can circulate freely. • Allow sufficient space between the stored foods for efficient air circulation. • Is the freezer drawer closed properly? Water dispenser is not functioning. • Is the water line connected and the shut-off valve opened? • Has the water supply line tubing been crushed or kinked? • Make sure the tubing is free and clear of any obstruction. • Is the water tank frozen because the fridge temperature is too low? Try selecting a warmer setting on the Digital display. • Is the Child Lock on? Auto close system does not work with the freezer door. • Is there an imbalance between the right and left parts of the door? • Open and close the door smoothly 1~2 times. After you do this, the auto close system usually works properly again. • Try opening the door smoothly to avoid unbalancing the right part and the left part of the door. 223 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-20. Diagnosis for Sparkling system (Only for RF31FM*S*) Water Supply to Sparkling Tank Error Display error when open error is detected by water supply to sparkling tank error : seperation of Sparkling Tank Water Level Sensor housing part, contact error, disconnection, short circuit. The voltage of ASSY PCB KIT CN31- “1” CN31-”2”: shall be over 4.5V 224 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-20. Diagnosis for Sparkling system (Only for RF31FM*S*) PROBLEM Trouble Shooting Step 1 Trouble Shooting Step 2 Possible Causes SOLUTION The Display is not set to the Sparkling Mode. Press the Sparkling Water button (③) on the Panel Display and set the Dispenser to the Sparkling Mode. Check if the Sparkling Water Production (②) is off. When the Sparkling Water Production is set to OFF, it does not produce additional Sparkling Water. Turn on the Sparkling Water Production by pressing the Sparkling Water button (③) on the Display Panel for 3 seconds (resetting the CO2 Cylinder) or pressing the Cube/Crushed button (④) for 3 seconds (Sparkling ON/OFF). Check if it is in the Sparkling Water Production Mode (②). (The Sparkling Level Icon rotates in the order of 1→2→3 with a 0.5 sec interval. No water dispensing during the Sparkling Water Production Wait until it completes the Sparkling Water Production. Check if Sparkling (②) is selected on the Display Panel. Nothing coming out when pressing the Sparkling Water Dispenser Lever Water coming out when pressing the Water Dispenser Lever 225 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-20. Diagnosis for Sparkling system (Only for RF31FM*S*) PROBLEM Nothing coming out when pressing the Sparkling Water Dispenser Lever Trouble Shooting Step 1 Water coming out when pressing the Water Dispenser Lever Trouble Shooting Step 2 Possible Causes SOLUTION Even if it has passed the production time of the selected Sparkling Level, it keeps operating (②, 30 minutes in Max ) The Fridge Door is open. Check if the Fridge Door Switch is defective or close the Fridge Door. 1. When pressing only the Sparkling Water Lever, the Display Panel does not wake up. 2. When pressing only the Water Lever, the Display Panel wakes up. ※ It is on the Display OFF mode for Energy Saving. Defective Sparkling Water Lever Switch Replace the Dispenser Lever. 226 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-20. Diagnosis for Sparkling system (Only for RF31FM*S*) PROBLEM Nothing coming out when pressing the Sparkling Water Dispenser Lever Trouble Shooting Step 1 Water coming out when pressing the Water Dispenser Lever Trouble Shooting Step 2 When pressing the Energy Saver button (①) on the Display Panel for 5 seconds after opening the Fridge Door, it will send off a Ding Dong sound and then the CO2 Valve will be open for a second. Confirm the Sound: There are CO2 Valve operating sounds. But, there are no CO2 injection sounds. -. Sounds occurring when the CO2 Valve is operating: "Tak" -. Sounds occurring when the CO2 is being injected: "Sui~k" Possible Causes SOLUTION CO2 Run-out inside the CO2 Cylinder Replace the CO2 Cylinder The CO2 Cylinder Lever is not locked. 1. The CO2 Cylinder Lever (⑪) is locked. 2. After opening the Fridge Door, press the Energy Saver button (①) on the Display Panel for 5 seconds and check if CO2 is injected. 227 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-20. Diagnosis for Sparkling system (Only for RF31FM*S*) PROBLEM Nothing coming out when pressing the Sparkling Water Dispenser Lever Trouble Shooting Step 1 Water coming out when pressing the Water Dispenser Lever Trouble Shooting Step 2 When pressing the Energy Saver button (①) on the Display Panel for 5 seconds after opening the Fridge Door, it will send off a Ding Dong sound and then the CO2 Valve will be open for a second. Confirm the Sound: There are no CO2 Valve operating sounds. -. Sounds occurring when the CO2 Valve is operating: "Tak" -. Sounds occurring when the CO2 is being injected: "Sui~k" Possible Causes Defective CO2 Injection Valve SOLUTION 1. Reset the CO2 Cylinder by pressing the Sparkling Water button (③) for 3 seconds on the Display Panel and reproduce the Sparkling Water. 2. When there is no CO2 injection even after completing the reproduction of the Sparkling Water, replace the Module. 228 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-20. Diagnosis for Sparkling system (Only for RF31FM*S*) PROBLEM Nothing coming out when pressing the Sparkling Water Dispenser Lever Trouble Shooting Step 1 Water coming out when pressing the Water Dispenser Lever Trouble Shooting Step 2 1. The Sparkling Production OFF Icon (②) is blinking. 2. The Over Flow Error occurs at the Self Diagnostics mode. : When pressing the ① and ⑤ buttons for 8 seconds at the same time, it will display 93E. Possible Causes SOLUTION Water leaks related to the Sparkling Water 1. Remove the Cover of the Sparkling Water Module. 2. Check for any water leak around the Over Flow Sensor (⑬). 3. Replace the Module when there is any leak. 229 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-20. Diagnosis for Sparkling system (Only for RF31FM*S*) PROBLEM Nothing coming out when pressing the Sparkling Water Dispenser Lever Trouble Shooting Step 1 Water coming out when pressing the Water Dispenser Lever Trouble Shooting Step 2 Function of Load Condition Mode. : It is displayed that there is no detection for both the Water Fill-Up and the Water Empty (R-10-ⓔ, R-10-ⓕ). 2. The Water Supply Error is confirmed at the Self Diagnostics Mode. : When pressing the ① and ⑤ buttons for 8 seconds at the same time, it will display 94E. Possible Causes Defective 5-Way Valve (No Water Supply) SOLUTION 1. Reset the CO2 Cylinder by pressing the Sparkling Water button (③) for 3 seconds on the Display Panel and reproduce the Sparkling Water. 2. When both the Water Fill-Up and the Water Empty are not detected (R-10-ⓔ,R-10-ⓕ) after completing the reproduction of the Sparkling Water and there is the Water Supply Error, replace the Module. 230 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-20. Diagnosis for Sparkling system (Only for RF31FM*S*) PROBLEM Nothing coming out when pressing the Sparkling Water Dispenser Lever Trouble Shooting Step 1 Water coming out when pressing the Water Dispenser Lever Trouble Shooting Step 2 Check it at the Display Function of Load Condition Mode. : Displaying that the Water Fill-Up is not detected (R-10-ⓔ). : Displaying that the Water Empty is not detected (R-10-ⓕ). → The Mixing Tank is empty. Possible Causes SOLUTION Without connecting the Tap Water, run the Sparkling Water Production Mode. And then, connect the Tap Water. (No Sparkling Water is produced after the Tap Water and the CO2 Cylinder are connected.) 1. Check if the CO2 Cylinder is connected properly. 2. Reset the CO2 Cylinder by pressing the Sparkling Water button (③) for 3 seconds on the Display Panel. 3. When pressing the Sparkling Water Lever after the Sparkling Water Production is completed, check if the Sparkling Water dispenses. 231 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-20. Diagnosis for Sparkling system (Only for RF31FM*S*) PROBLEM Nothing coming out when pressing the Sparkling Water Dispenser Lever Trouble Shooting Step 1 No water dispenses when pressing the Water Lever. Trouble Shooting Step 2 Possible Causes SOLUTION Whether the Child Lock (⑥) on the Display Panel is selected. The Child Lock is selected. Cancel the Child Lock (⑥) Check the connecting status of the Water Supply Tube at the back of the Fridge. Defective Water Supply Tube Connection at the back of the Fridge. Connect the Water Supply Line correctly at the back of the Fridge. After separating the Panel, check the status of the Housing connection (⑨) between the back of the Panel and the Fridge. Defective Housing Connection Connect the Housing (⑨) Check whether the Fridge Door is open or whether the Fridge Door Switch is defective. No Water Dispensing when opening the Fridge Door. Close the Fridge Door or repair the Door Switch 232 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-20. Diagnosis for Sparkling system (Only for RF31FM*S*) PROBLEM Nothing coming out when pressing the Sparkling Water Dispenser Lever Trouble Shooting Step 1 No water dispenses when pressing the Water Lever. Trouble Shooting Step 2 Possible Causes SOLUTION When plugging out the Hose(⑧) of the DC Valve Input Terminal and pressing the Lever, the Sparkling Water or the Water dispenses. Defective DC Valve Replace the DIS Valve (⑦) When plugging out the Hose(⑩) of the 5-Way Valve Input Terminal and pressing the Water Lever, the Water dispenses. 1. Defective Housing(⑨,⑫) Connection 2. Defective 5-Way Valve (No Water Supply) 1. Reconnect the Housing (⑨,⑫) and check it. 2. Replace the Module when the symptom occurs again. No Water coming out from the Water Hose Check the Water Supply at the Water Tap Defective 1-Way Valve (Safety) Defective 2-Way Valve (I/W) Replace the Filter Assy When plugging out the Hose (⑩) of the 5-Way Valve Input Terminal and pressing the Water Lever, the Water does not dispense. 233 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-20. Diagnosis for Sparkling system (Only for RF31FM*S*) PROBLEM Nothing coming out when pressing the Sparkling Water Dispenser Lever Trouble Shooting Step 1 All Valves operate normally. Trouble Shooting Step 2 Possible Causes SOLUTION Check if the Sparkling Water Production (②) is off. When the Sparkling Water Production is set to OFF, it does not produce additional Sparkling Water. Turn on the Sparkling Water Production by pressing the Sparkling Water button (③)on the Display Panel for 3 seconds (resetting the CO2 Cylinder) or pressing the Cube/Crushed button (④) for 3 seconds (Sparkling ON/OFF). When connecting the Water Hose properly and pressing the Water Lever, check if water dispenses. When the Sparkling Water Function operates, there is no Water Supply but for the CO2. Connect the Water Hose correctly at the back of the Fridge. Check it at the Display Function of Load Condition Mode. : It displays that the Water Fill-Up is detected (R-10-ⓔ). → Reproduce the Sparkling Water without water supply Defective Housing (⑨,⑫) Connection Reconnect the Housings (⑨,⑫) Defective Display Panel Replace the Display Panel Defective Water Level Sensor Replace the Module 234 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-20. Diagnosis for Sparkling system (Only for RF31FM*S*) PROBLEM Nothing coming out when pressing the Sparkling Water Dispenser Lever Trouble Shooting Step 1 Trouble Shooting Step 2 Possible Causes 1. Check it at the Display Function of Load Condition Mode. : It is displayed that there is no detection for both the Water 1. Defective Fill-Up and the Water Housing(⑨,⑫) Empty Connection 2. Defective 5-Way (R-10-ⓔ, R-10-ⓕ). Valve (No Water 2. When plugging out Supply) the Hose (⑩) of the 5-Way Valve Input Terminal and pressing the Water Lever, the Water dispenses. SOLUTION 1. Reconnect the Housing(⑨,⑫). 2. Replace the Module. 235 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-20. Diagnosis for Sparkling system (Only for RF31FM*S*) PROBLEM Weak Sparkling Water CO2 Level Trouble Shooting Step 1 All Valves operate normally. Trouble Shooting Step 2 Possible Causes When pressing the Energy Saver button (①) on the Display Panel for 5 seconds after opening the Fridge Door, it will send off a Ding Dong sound and then the CO2 Valve will be open for a second. Confirm the Sound: There are CO2 Valve operating sounds. But, there are no CO2 injection sounds. -. Sounds occurring when the CO2 Valve is operating: "Tak" -. Sounds occurring when the CO2 is being injected: "Sui~k" CO2 Run-out inside the CO2 Cylinder SOLUTION Replace the CO2 Cylinder 236 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-20. Diagnosis for Sparkling system (Only for RF31FM*S*) Trouble Shooting Step 2 Possible Causes Drizzling Sparkling Water(water streams are not strong enough) When pressing the Energy Saver button (①) on the Display Panel for 5 seconds after opening the Fridge Door, it will send off a Ding Dong sound and then the CO2 Valve will be open for a second. Confirm the Sound: There are CO2 Valve operating sounds. But, there are no CO2 injection sounds. -. Sounds occurring when the CO2 Valve is operating: "Tak" -. Sounds occurring when the CO2 is being injected: "Sui~k" CO2 Run-out inside the CO2 Cylinder Replace the CO2 Cylinder There is too much Sparkling Water Dripping. 3 or more water drops occur right after dispensing the Sparkling Water. Defective DIS Valve Replace the DIS Valve (⑦) PROBLEM Trouble Shooting Step 1 SOLUTION 237 https://appliancetechmanuals.com 6. Self Diagnosis & Trouble Shooting To do list 6-20. Diagnosis for Sparkling system (Only for RF31FM*S*) PROBLEM Trouble Shooting Step 1 Water leaks out from the Vent Valve. The Over Flow Error occurs. Water leaks at the joints. Trouble Shooting Step 2 1. Even if the Mixing Tank is filled up with water, it does not detect the Water FillUp and water comes out of the Vent. 2. Check it at the Display Function of Load Condition Mode. : The Water Fill-Up is not detected (R-10-ⓔ). Possible Causes SOLUTION Defective Housing (⑨,⑫) Connection Reconnect the Housing ⑨and ⑫ Defective Display Panel Replace the Display Panel Defective Water Level Sensor (No Water Fill-Up Detection) Replace the Module Open the Module and check the marking area on each Hose No Hose Insertion Insert the Hose Check the water leak area of each Hose. Hose Scratch Replace the Hose 238 https://appliancetechmanuals.com 7. PCB DIAGRAM To do list "This document can not be used without Samsung's authorization" 7-1. PCB Layout with part position 239 https://appliancetechmanuals.com 7. PCB DIAGRAM To do list 7-1. PBA Layout with part position 1. DC12V, 5V, GND supplied from SMPS PCB (Not Used) 2. Circuit for controlling Step-Valve (3-Way Valve) * Option 3. FAN MOTOR control part : To supply the power from 8.3V ~ 12V according to the motor types. (F,R,C,ICE) 4. EEPROM : Save and record every kinds of data. 5. Transmit inputted signals from every sensor into MICOM after eliminate the noise. 6. Micom : control the regrigerator Ceramic resonator : generate the basic frequency of Micom operation. Reset IC : make Micom reset if input voltage of Micom is detected less than the specified voltage 7. PLC input/output - PLC (Power Line communication) * Option (PLC module is not inserted unless specified occasion) 8. Operate ICE-MAKER, supply power to MOTOR, and sense the variation of switch. 9. Main Micom ↔ Panel Micom serial communication circuit - Dispenser option input part (Water & Cover Ice route switch) 10. Mid drawer Room display control part : display LED, detect KEY state. 11. Control Mid drawer Room damper & Damper heater 12. Water Tank Heater Controls (also controls other options) 13. LED LAMP Control Circuit (F,R room Lamp) 14. Relay parts that controls AC load and receives Micom operating signal through Sink IC. 15. Connector with AC load a. Diode option setting area b. Inverter COMP controlling signal c. Flow Sensor controlling signal 240 https://appliancetechmanuals.com 7. PCB DIAGRAM To do list "This document can not be used without Samsung's authorization" 7-2. PBA Layout with part position (Inverter Board) 1. PCB Power Supply : From the SMPS circuit, it supplies 13.2V and 5V for the Main PBA control and supplies 15V and 5V to the Inverter circuit for the Compressor control. 2. Inverter Control Circuit : Fridge Compressor Control Circuit. 3. COMP Driving / Feedback CircuitIt receives the COMP operation signals from the Main PBA and feedbacks the inverter errors to the Main PBA. 4. BOOTSTRAP Charger : It is an independent power circuit for the driving of the IMP HighPhase IGBT. 5. Current Pickup Circuit : It pickups the currents taken by the Shunt resistance and does the PWM DUTY control. 6. IPM (FNE41060) 7. Micom (MN103SFC2D) 241 https://appliancetechmanuals.com 7. PCB DIAGRAM To do list "This document can not be used without Samsung's authorization" 7-3. Connector Layout with part position (Main Board) RF31FMED**/ RF24FS** 242 https://appliancetechmanuals.com 7. PCB DIAGRAM To do list "This document can not be used without Samsung's authorization" 7-4. Connector Layout with part position (Inverter Board) 243 https://appliancetechmanuals.com 8. Wiring diagram To do list "This document can not be used without Samsung's authorization" RF31FM*D** / RF24FS** (Common for All Models) 244 https://appliancetechmanuals.com 8. Wiring diagram To do list "This document can not be used without Samsung's authorization" RF31FM*S** (For Sparkling model Only ) 245 https://appliancetechmanuals.com 9. SCHEMATIC DIAGRAM To do list "This document can not be used without Samsung's authorization" 9-1. Whole block diagram RF31FM** 246 https://appliancetechmanuals.com 9. SCHEMATIC DIAGRAM To do list "This document can not be used without Samsung's authorization" 9-1. Whole block diagram RF24FS** 247 https://appliancetechmanuals.com 10. MODEL CODE TABLE To do list "This document can not be used without Samsung's authorization" 10-1. Nomenclature RF31FM** 248 https://appliancetechmanuals.com 10. MODEL CODE TABLE To do list "This document can not be used without Samsung's authorization" 10-1. Nomenclature RF24FS** 249 https://appliancetechmanuals.com Thank you The End - This Service Manual is a property of Samsung Electronics Co., Ltd. Any unauthorized use of Manual can be punished under applicable International or domestic law.