Water Valves

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Samsung HA Warranty
• ALL Warranties are subject to change, always verify.
• 1 Year Parts & Labor Base Warranty
• Some items may have longer Warranties, Check Owners Manual or
800-SAMSUNG
– Laundry 2 years on Control Boards, 3 years on Stainless tubs, 10 years on DD
washer motors
• One Year, One Call for Consumer Education
• Stock Repair, 18 months from date of manufacture
• One Stock Repairs allowed under Warranty
New Models
Matching Dryer
DV50F9A
Top Load Washer
WA50F9A
Model & Serial Tag
Located on the back of the unit
Located on the
back of the
console and also
on the cabinet
Laundry Serial Number
Production Year
R : 2001 T : 2002
W : 2003
X : 2004 Y : 2005 A : 2006 Jan
L : From
02/2006 P : 2007
Q : 2008
S : 2009 Z : 2010
B:2011
C:2012
D:2013
F:2014
G:2015
H:2016
J:2017
K:2018
M:2019
N:2020
90210 G C D 3 0 0 1 6 0 A
Production
Country
Korea 2,3
China A
Thailand D
Mexico G
India Z
USA ???
Pro. Month
1~9 : Jan~Sep
A : October
B : November
C : December
Model Name
5
Critical Parts Look-up Information
Always look for a “Version Number” on all
products, if you are looking up parts, ask tech
to verify “Version”.
Always get the Serial Number on all products.
There are “Running Changes” that have
“Bulletins” referring to part number changes
at a production Serial Number. If you are
looking up parts, ask tech to verify “Serial
Number”.
Screen Shot of GSPN
PCB Layout
Part Checks from the fast Track Manuals
Hall Sensor Check
Check Voltage at Pin #4 and #3 of CN9
Tester Check = DC0.6V
Check Voltage at Pin #4 and #2 of CN9
Tester Check = DC0.6V
Water Valves/ Check
Check Voltage at Pin #3 of CN1 and Pin
#1,2,3,4 of CN4
When Valves operates = AC 120V
Motor Check
Resistance at Pin #1 of CN3 and GND
= 226㏀
Resistance at Pin #2 of CN3 and GND
= 226㏀
Resistance at Pin #3 of CN3 and GND
= 226㏀
Clutch-Motor
Check Voltage at Pin #3 of CN1 and Pin #8 of
CN4
When Valves operates = AC 120V
Drain Pump Check
Check Voltage at Pin #3 of CN1 and Pin #5
of CN4
When Drain Pump operates = AC 120V
AC Power Check
Check Voltage at Pin #1 and #3 of CN1
Tester Check = AC 120V
Door Lock Check
Check Voltage at Pin #3 and #5 of CN8
When Door Lock = DC 6.5V
Fast Track Manuals
(mini manuals)
Model
Number
Location
Fast Track Model Location
f
WA50F9A6DSW
Fast Track Manual
Service
Mode
Usage
Instructions
Page 5 Fast Track
Page 3 Fast Track
Additional Fault Codes
15
Additional Fast Track Service Mode Tests
Quick Spin Test = Delay Start & Temp: This accelerates the drum motor from
0 to maximum RPM over a few minutes. Note: Stay with the washer during this test,
out of balance detection may be bypassed
Cycle Count = Press Signal key to view times the unit was used
Soft Ware # = Press Soil key to see the software version info
Fast Time Down = Press Temp key to advance to next cycle
Water Frequency Testing = Select a cycle & start the washer, enter Service
Mode & press Extra Rinse. Turn the Jog Dial so that the Bedding LED is turned on.
Next, press the Start/Pause Key. The Water Frequency will be dis-played. The
frequency will change as the unit fills
Smart Care Diagnosing
-Smart Care: Use this function to check if the
washing machine is out of order using your
smart phone when the washing machine
malfunctions. This function is set if you press
and hold the AquaJet TM key for 3 seconds
within 10 seconds of turning the power on or
when an error occurs
17
Smart Care
Normal Error
Display
Smart Care Error
Display
Using Smart Care
Using Smart Care – Method 1
Using Smart Care – Method 1
Using Smart Care – Method 2
After attempting to read the machine
display 2 times the phone application will
go to the manual mode. Touch the
segments on the phone display to match
the display on the machine and touch
confirm for the diagnosis. If you press
the wrong segment, touch it again to turn
the segment off.
Fast Track Manual
Quick Test
Mode usage
Instructions
For this model
Water Valves &
Test Modes Procedures
Water Valve Disassembly
Part
Figure
Description
1. Remove the 6 screws holding the control
panel assembly and separate cover panel.
2. Separate the both hooks. (Left and Right)
3. Separate the cover panel upward.
Sub and Main PCB
Assembly
* If it is difficult to disassemble, use the (-) driver
to disassemble hooks.(Be careful damage of
hooks.)
4. Remove the 2 screws holding the control
panel assembly and turn the panel over.
25
Water Valves
Water Valve Solenoids = ~1 KΩ
Operates on 120 VAC
HOT
Shower Rinse
Bleach Dispenser
Test Mode & Error Check
How to Enter:
- Plug in and turn on the unit.
- Press the Spin, Soil level and Power buttons at the same time.
1. All LED’s light up and it sends out Beep Sound when it enters into the Quick Test Mode.
(Including 7-Segment)
2. Displays software version for a sec and Clear EEPROM.
3. When the version is displayed, turn the Jog-Dial so that the version disappears.
Press the following keys to test the various components.
- Temp Key: Water Valve Test
- Spin:
Drain/ Circulation Pump Test
- Soil Key: Water Heater Test
- Signal:
Door Lock/Unlock Test
Test Mode
Quick Test Mode
RESULTS
Water Valve Test:
TEST
1. To enter the Water Valve Test, press the
Temp Key while model information is being
displayed during the Quick Test Mode.
Quick Test Mode
2. Each time the Temp Key is pressed, it will
cycle through the operations on the left
flow chart.
Press Temp Key
Pre Water Valve On
Press Temp Key
3. If the Temp Key is pressed during All Water
Valve OFF, the machine will return to the
beginning as shown in the flow chart.
Bleach Valve On
Press Temp Key
4. The door needs to be secured for the Water
Valve to operate. Therefore, the door lock
will be on during the water valve operation.
Cold Valve On
Press Temp Key
Hot Valve On
5. If there is any problem with Water Valve, PCB
Ass'y. or Wire Harness, the water valves
could not operate. So, to make sure for the
water valves to operate, check visually if
water comes out with each Water Valve On
mode.
Press Temp Key
ASK
SYMPTOM : Nf Fail Code
Don’t miss the obvious possibilities! Always know the
water in the are you work
Water Errors
Error on Screen
Code
Cause
Fix
WATER LEAKAGE PROBLEM
01
Water level drops
below heater level,
over 5 times during
wash
Check for leak
Check for siphoning
at drain
SUDSING?
LOW WATER PRESSURE
03
Not reaching “fill”
condition within 15
minutes. Fill starts,
then no change
detected within 2
minutes
Check water supply
and fill valves.
Check for siphoning
at drain
WATER LEVEL SENSOR
PROBLEM
08
Water level detected
below Empty or
above Overfill for 10
seconds
Defective Level
Sensor or connecting
wires
WATER SUPLY PROBLEM
E, 01
Level over the
overflow pressure
sensing for over 15
seconds
Valve stuck open
Pressure Switch
31
Pumps & Testing
Drain Pump Removal
The drain pump is located in the rear
of the machine. To remove the drain
pump, disconnect the water hoses.
Remove the cover over the electrical
connector and unplug the connector.
Remove the 2 - 10mm screws from
the base and lift the pump out.
Drain Pump Installation
Washer base
Pump base foot
When reinstalling the drain pump, make sure
the hole in the pump base rubber foot is
placed on the stud on the bottom plate of
the washer before installing the 2 screws.
NOTE: Do not over tighten the screws as they
are metal screws in a plastic hole and will
strip.
Circulation Pump
This creates
our Aqua Jet
function
Motor Windings = ~20Ω
Circulation Pump Removal
To remove the circulation pump disconnect
the electrical wiring, remove 6 screws, and
remove the pump.
NOTE: The water hoses are connected to the
pump housing and do not need to be
disconnected to remove the motor.
Functions & Features
- Aqua Jet TM: Improves the washing & rinsing performance using falling water.
37
Test Mode & Error Check
How to Enter:
- Plug in and turn on the unit
- Press the Spin, Soil level and Power buttons at the same time.
1. All LED’s light up and it sends out Beep Sound when it enters into the Quick Test Mode.
(Including 7-Segment)
2. Displays software version for a sec and Clear EEPROM.
3. When the version is displayed, turn the Jog-Dial so that the version disappears.
Press the following keys to test the various components.
- Temp Key: Water Valve Test
Spin: Drain/ Circulation Pump Test
- Soil Key: Water Heater Test
- Signal:
Door Lock/Unlock Test
Vibration Controls
Vibration Reduction Technology
Front Load Washers
VRT or Vibration Reduction
Technology is a simple but
effective way of counter
balancing the load inside
the wash drum. The steel
balls located in the track
front and rear of the drum
will find their balanced
position bas ed on the
weight of the wash load.
Top Load VRT
Main Part List
Assemble Basket Spin Review
1
2
3
4
5
No
Part
Material
Q’ty
1
ASSY BASKET SPIN
-
1
2
ASSY BALANCER
-
1
3
BALANCER UPPER
PP
1
4
BALANCER LOWER
PP
1
5
BASKET WRAPPER
STS430
1
6
BASKET BOWL
STS430
1
7
FLANGE SHAFT
ALDC12
1
Remark
6
7
42
Outer Basket Controls
Unit has Four suspension rods that
locked into the corners of the
cabinet at the top and to the
bottom of corners of the tub
Bottoms are
spring loaded
Using the same principle as damper
shock, the rods control the outer
basket until the inner tubs VRT control
sets
Checking the Suspension Rods
1. Make visual checks of the top & shaft of the rod. Also look for signs for
the tub leaning to one side indicating one weak spring
2. Remove the Rod and check the spring for good action and make sure it is
not gummed up from and detergent over flow
3. Replace them as a set of four, one new one will over compensate
Door Locks
Checking DD motor
Rotor, Stator, & Clutch Assy
1
2
11
6
4
3
7
No
Part
Material
Q’ty
1
ASSY DRIVING MODULE
-
1
2
ASSY LEVER CLUTCH
-
1
3
ASSY DD BLDC MOTOR
-
1
4
MOTOR-BLDC-ASSY STATOR
-
1
5
MOTOR BLDC-ASSY ROTOR
-
1
6
MOTOR BLDC-ASSY HALL SENSOR
-
1
7
BOLT-ETC
SCM435
5
8
FASTENER-PLAIN
STC
1
9
FASTENER-SPRING
MSWR10
1
10
NUT-HEXAGON
SM20C
1
11
ASSY SCREW
-
6
Remark
5
8
9
10
48
Drum Motor Removal
From underneath the machine remove the 4 - 10mm bolts holding the
rotor bracket in place and remove the bracket
Like the front load washer, remove the 17mm bolt holding the rotor in
place and remove the rotor from the shaft.
Disconnect the motor and hall sensor, remove the 6 - 10mm bolts and
remove the stator
Drum Motor

•
•
•
•
STATOR

ROTOR
The stator creates the magnetic field that rotates the rotor
Together the stator and rotor make the motor that runs the machine
The Hall Effect Sensor monitors the speed and rotation
Quick Spin Test (in service mode) will display the rotation speed of
the drum
Hall Effect Sensor
MICRO
Uniform Signal
MICRO
Hall Sensor
Irregular Signal



Monitors motor via the Micro-Controller
Irregular signals will trigger the “Untying” Operation and determine if the
drum is out of balance (after 15 min)
Manually spin drum to verify voltage changes at the Main PCB (0VDC 3.75VDC)
Drum Motor
MOTOR
Similar direct drive drum motor to
the front load washers
~18Ω =
HALL SENSOR
Hall Sensor – Blue to Green Blue – Gray - ~9.35 KΩ
Blue – Red - ~4.67 KΩ
Gray – Red - ~4.67 KΩ
Red to White
Red to Blue
White to Blue
Clutch Motor
Violet/Black – Brown = 0Ω
Violet/Black – Black = ~2KΩ
Brown – Black = ~2KΩ
Clutch Motor Removal
To remove the clutch
activation motor, first
remove the clutch
motor
lever
by
removing 2 Philips head
screws. Turn the lever
to disengage from the
clutch motor.
When installing the lever the studs
underneath must line up with the
holes in the chassis
To remove the clutch
motor, disconnect the
electrical wiring, remove
the 2 screws in the clutch
motor and remove the
motor.
Clutch Removal
With the drum motor removed, Remove the clutch
motor lever. Release the springs on both sides of the
clutch and turn the outer assembly counter clockwise
until it comes out.
CAUTION: Everything is spring loaded – carefully observe
the disassembly process so it can be properly reassembled.
Slowly turn the outer clutch ring assembly until it
comes out using caution with the inner clutch hub
as it is also spring loaded
Clutch Removal
The center hub is what moves to
engage the gear on the rotor.
To remove the part of the clutch
assembly that contains the hall
sensor, remove the 5 Philips
head screws and remove the
assembly after disconnecting the
hall wiring connector.
Heater, Temp Sensor, & MEM Sensor
Heating Element
Open the cover of the heating element
Water Heating Element
For Sanitize Cycle
~12 Ω
Screw
10 mm Nut
~12 Ω
Remove the 10mm nut and the
Philips head screw to remove
the heater cover. Disconnect
the electrical connectors.
These are high current
connections and they must be
clean, tight and dry.
The rubber seal on the heater
will be very tight and may have
to be pried out.
Heating Element
The rubber seal on the replacement element may be dry
and difficult to install.
When replacing the heating element, be aware that it has a bend in it and must be inserted
into the bracket inside the outer tub or it will hit the inner tub when it spins.
The heating element must be inserted here
Temperature Sensor
MEM Sensor
2013 Samsung Dryer
DV50F9A8EVW/A2
1.Product Introduction
Main
Feature
Sub.
Feature
▶ Extra-Capacity
[7.4 cu.ft. ]
▶ Energy Saving
[3.06pounds/kWh]
▶ Time Saving
[Normal Course: 45 min]
▶ Easy Reversible Door
▶ 4-way Vent (electric model only)
Main Board From Fast Track
Service Mode
4. Test Mode & Error Check
Service Mode
4. Test Mode & Error Check
Touch Sensor Data Display Mode
4. Test Mode &Cycle
Error Check
Count Mode
Fast Track Error Code
Error Codes
Error Display
LED
tS
tO
LCD
Trigger
The Thermistor
resistance is very
low or high.
Action Taken
Check for :
- Clogged lint screen
- Restricted vent system.
- Check Thermistor resistance.
dO
Check for :
Running the dryer - Close the door, and run the dryer
With door open
- Loose or open wire terminals in Door
sense circuit.
dF
Invalid state for
More than 256
Milliseconds
Check for :
- Loose or open wire terminals in Door
sense circuit.
bE
Invalid state of
Key circuit short
for 75secs
Check for :
- Display PCB key circuit short or not
Test Mode & Error Check
Error items and Diagnostic Codes
Error Display
LED
LCD
Trigger
Action Taken
Od
Check for :
Invalid Dry time in
- Sensor bar Open
excess Dry time
- Using Adjust time Up excessively
hE
Invalid heating
Temp in
running the dryer
Check for :
- Restricted vent system.
- Check Thermistor resistance.
Et
Invalid state of
Eeprom comm
-unication
Check for :
- PCB on Eeprom circuit
Invalid power
source Frequency
Check for :
-Not using regular power source
frequency
- Invalid power frequency sense circuit
FE
Dryer Failures
Terminal Block
A loose power cord connection to
the dryer receptacle outlet has
caused the connection to
overheat and short out.
Dryer Noises & Fixes
Front & Back Roller
1)Squealing sound while in use, remover the front panel and front
bulkhead. Pull the drum and spin the wheels to duplicate
2)Thumping sound on each revolution, repeat removes above and inspect
each roller for a flat edge
Canning Sound or Metal Popping
Most common locate
For this issue
When you hear a
popping metal sound
or a canning noise,
while the unit runs.
Locate the metal tabs
to the rear bulkhead
and tighten them
down. The heat can
cause this metal to
flex while in use
Belt Issues
Replacing the Idler Pulley
Step 1 - Access the vent duct cover and remove it.
Replacing the Idler Pulley
Step 2 - Insert the stopper into one of the motor cooling blades and push it all the
way to the left. Then using the impact driver, unscrew the pulley with the 22mm
socket and impact wrench. The direction should be counterclockwise.
Replacing the Idler Pulley
Step 3 - Push the stopper to the opposite side, replace the socket with a 27mm.
To prevent thread damage, assemble the new pulley manually and
finish tightening the pulley clockwise by using the manual driver.
Step 4 - Assemble the
belt on idler and
motor
pulley. Check to make
sure the belt is
mounted
securely and the
motor
mount clip is installed
in its position.
Step 5 Reassemble the
vent duct and
cover.
In Addition to the Pulley
Pulley out of Position
Notice the pulley
Is not in alignment
With the motor
Pulley. This example
is exaggerated but
be aware all need to
be adjusted when
the pulley is being
replaced
Pulley In Position
Notice this ones
pulley is in direct
line with the motor
pulley
Heating Elements
Electric Heater Component Check
Thermostat 3
(High-Limit)
NC (<1Ω)
Thermostat 2
NC (<1Ω)
Heater
Connections
(Approx. 10Ω)
•
•
•
Thermostat 2 is normally closed and directly tied to the heater connections; it will
open up if the heating element gets too hot.
Thermostat 3 (High-Limit) is normally closed and will open up and shut down the
dryer if it detects an excessively high temperature.
A defective High-Limit thermostat will prevent the dryer from operating.
Electric Heater Component Check
Coil has a 9.8Ω end to end
When the heater box is
opened you can see the
coils to the element.
Be aware of broken
elements coils or
sagging elements coils
can cause the unit to
stay on or off.
Gas Dryer
Hi Limit
Tab not bent
Noise!!!
Tab Bent
Flame
Sensor/Switch
Noise!!!
Steam Cycles
Two options to choose
DV448 Water and Steam
Fine mist spray nozzle
Dual solenoid water valve
The steam feature in the dryer consists of two major components
90
The “Steam Cycle” consist of two functions, the Refresh and Winkle Away.
Wrinkle Away
Is basically designed to remove wrinkles in clothes that have been left in the dry for a
long period of time (Larger load). Selecting this function, water is supplied for roughly
about 4 minutes.
Since water is being supplied for about 4 minutes, the larger load can absorb the
increased amount of water. (Amount of clothes 11 – 14 items)
Refresh
Is basically for clothes that have been folded in a drawer, or hanging in the
closet (Smaller load). Selecting this function, water is only supplied for a
little over 1 minute
Since less water is being supplied, the small load can absorb the amount
of water without any issues. (Amount of clothes 1 – 4 items)
5. Disassembly & Reassembly
Disassembly
1. Disconnect the power supply to the unit.
2. Remove the Panel Control, the Main PCB and the
Cover Top.
3. Remove 3 screws from the Frame Front.
→ When 1 screws of the top portion work because
was added newly, keep in mind.
5. Remove 3 screws.
5. Disassembly & Reassembly
Disassembly
Frame Front Removal
6. Remove the Door Switch Housing.
→ When reassemble Door Switch to Frame Front, be
careful for insert direction.
7. Lift the Frame Front off the three tabs across the
bottom and remove.
Disassembly
1. Disconnect the power supply to the unit.
2. Remove the Panel Control, the Main PCB, the
Cover Top and the Frame Front.
3. Disconnect Interior Light wiring Harness.
(DV456 Only)
4. Remove the four Bracket Drum Front 5 screws.
5. Disassembly & Reassembly
Disassembly
5. Disconnect the Moisture Sensor wiring Harness.
6. Remove the Drum Front.
5. Disassembly & Reassembly
Disassembly
Drum Back Removal
1. Disconnect the Power Supply to the unit.
2. Remove the Panel Control, the Main PCB, the Top.
Cover, the Frame Front, the Drum Front and the Drum.
3. Remove 7 screws from the Drum Back.
4. Separate the wire in the Wire Holder.
5. Disassembly & Reassembly
Disassembly
5. Separate the Drum Back from the Frame.
6. Remove 4 screws from the Air Duct.
→ Be careful of the Bracket edge.
5. Disassembly & Reassembly
Disassembly
DOOR S/W Removal
1. After separate Holder Wire in Door S/W,
Door S/W Hook Press and is Pull to Frame Front whole
surface.
2. Pulls Door S/W to direction in 5 o’clock and separates Door
S/W left part.
3. Pull Door S/ to front side.
5. Disassembly
& Reassembly
Motor
/ Blower Removal
1.After remove Drum, do the following.
2.Remove the 2 screws from Duct Connector.
3.Separate Duct Connector
4.Remove 1 Housing Motor
5.Remove 2 Housing Belt Cut Off Switch
6.Remove 3 Screw from Motor-Bracket
7. Lift motor assembly straight up
5. Disassembly
& /Reassembly
Motor
Blower Removal
8. Separate Assy Motor in Bottom Plate
9. Lock Blower Wheel with a screwdriver and
separate the 14mm nut from Fan.
10. Remove Blower Fan.
11. Remove the three screws from Cover-Duct Fan.
12. Remove 2 Spring Plate Using a long-nose pliers.
13. Remove 1 Screw Belt Cut Off Switch
14. Remove Holder Shaft and Roller-Idler.
■ After reassembly check the Motor work
properly
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