Index
Sr No.
Description
Slide no.
1
PCB of D/Z panel & KENSTAR/ELECTROLUX panel
2
2
PCB of Hot & Cold type & Left-Right swing
3
3
PCB of Air series panel & WiFi
4
4
PCB component identification sheet
5
5
Error Codes
6-9
6
PCB diagnosis in the field
10
7
PCB check process while removing for replacement
8
How to run AC in worst condition
13
9
Care in field for sending defective PCB
14
11-12
India dance series
Cooling/D panel/Z panel
PCB Identification Code-0x1E3746
Software Version code-24
Cooling/KENSTAR panel/ELECTROLUX panel
PCB Identification Code-0x1CEED1
Software Version code-10
18k
Control
PCB
Part Code1100103949
Model Code-07
Part Code1100111869
Model Code-07
12k
Control
PCB
Part Code1100104458
Model Code-05
Part Code1100111870
Model Code-05
Display
PCB
Part Code
1100103950
Part Code
1100111868
India dance series
Cooling & Heating/D panel/Z panel
PCB Identification Code-0x1E6C3A
Software Version code-23
Cooling/Left –Right swing/D panel/Z panel
PCB Identification Code-0x1DF999
Software Version code-21
18k
Control
PCB
Part Code1100108101
Model Code-08
Part Code1100107947
Model Code-07
12k
Control
PCB
Part Code1100108102
Model Code-06
Part Code1100107948
Model Code-05
Display
PCB
Part Code
1100108987
Part Code
1100103950
AIR series
Cooling PCB
PCB Identification Code-0x1E3746
Software Version code-24
Cooling/WiFi
PCB Identification Code-0x277013
Software Version code-10
18k
Control
PCB
Part Code1100103949
Model Code-03
Part Code1100112848
Model Code-03
12k
Control
PCB
Part Code1100104458
Model Code-01
Part Code1100112847
Model Code-01
WiFi CHIP
Display
PCB
Part Code
1100112846
Part Code
1100112846
Part Code
1100112999
PCB Component Identification Sheet
ERROR CODE-E1,E2
ERROR CODE-E1
CAUSES
COUNTERMEASURES
ROOM SENSOR NOT PROPERLY INSERTED AT
CN5 CONNECTOR LOCATION
INSERT ROOM SENSOR PROPERLY AT CN5
CONNECTOR LOCATION
ROOM SENSOR FAULTY
REPLACE ROOM SENSOR WITH NEW ONE
PICTURE
ROOM
SENSOR
CN5
ERROR CODE-E2
CAUSES
COUNTERMEASURES
COIL SENSOR NOT PROPERLY INSERTED AT
CN6 CONNECTOR LOCATION
INSERT COIL SENSOR PROPERLY AT CN6
CONNECTOR LOCATION
COIL SENSOR FAULTY
PICTURE
REPLACE COIL SENSOR WITH NEW ONE
COIL
SENSOR
CN6
ERROR CODE-E4
CAUSES
COUNTERMEASURES
1.LOW GAS CAUSING FROSTING
INSERT GAS
2.EVAPORATOR COIL DIRTY
REMOVE FROSTING
3.TEMPERATURE CONTROL
Under cooling and dry modes if Te≤-2⁰C for consecutive 3min and the compressor
continuously runs for 5 min or longer, the compressor will stop running while the
indoor fan continues to blow in the set fan speed ;if Te≥7⁰C, the protection will be
suspended
4.COMPRESSOR PROTECTION
If the following 3 conditions have been met for 1 hour and 45 min, the
compressor will stop running for 7 min while the fan keeps running at set fan
speed.
A)Compressor runs continuously
b)Indoor fan runs at low medium or ultra low fan speed
c)In case of room Tr<26⁰C,If compressor stops , the timing process starts again.
Note: If the fan runs at other speeds or room temp≥26⁰C,the timing will be
suspended; the timing process will continue if those conditions are met again;
and the cumulative time will be cleared in case of shutdown or mode conversion.
IT MAY BE BECAUSE OF EVAPORATING COIL SUCTION
IS BLOCKED SO REMOVE BLOCKAGE OVER OF IT.
NO NEED TO WORRY
ERROR CODE-E5
CAUSES
1.MOTOR CONNECTORS ARE NOT
PROPERLY INSERTED AT LOCATION CN8 &
CN4
COUNTERMEASURES
PICTURE
INSERT CONNETORS PROPERLY AT CN8 & CN4
LOCATION
CN8 & CN4
LOCATION
2.INDOOR FAN MOTOR FAULTY
REPLACE INDOOR FAN MOTOR WITH NEW ONE
IDU FAN
MOTOR
3.INDOOR FAN MOTOR JAM
REPLACE INDOOR FAN MOTOR WITH NEW ONE
4.BLOWER JAM
UNBLOCK THE BLOWER
5.SHAFT OUT OF BEARING
INSERT SHAFT PROPERLY IN BEARING
PROPER
MOTOR-BLOWER
ASSY.
ERROR CODE-E6
CFC-free protection(E6)
This function is applicable for cool mode.
After the compressor runs for consecutive 15min, if the difference between evaporator temperature(Te) and room temperature (Tr) exceeds
range C(means Te>Tr-3℃) and lasts for 1min, the indoor fan will run at low speed (the display is keeping unchanged). 1min later, if the
difference is still beyond range C(means Te>Tr-3℃), it will be judged that the refrigeration capacity of AC is lack, so the entire machine will be
stopped and the indoor panel of AC will display fault code(E6). (Range C: Te ≤ Tr - 3℃)
CFC-free protection will be tested only once after startup, the machine cannot be restored in case of CFC-free protection and must be
repowered."
Following may be reasons for lacking refrigeration capacity
CAUSES
COUNTERMEASURES
PICTURE
1.VERY LOW GAS
FILL THE GAS IN THE UNIT
2.GAS LEAKAGE
FIND LEAKAGE POINT AND THEN MAKE
ARRANGEMENT FOR NO LEAKAGE AND
THEN FILL THE GAS IN THE UNIT
3.COIL SENSOR NOT PROPERLY INSERTED AT EVAPORATING
COIL HOLDER LOCATION
INSERT COIL SENSOR PROPERLY IN COIL
SENSOR HOLDER
4. COMPRESSOR NOT GETTING ON
CHECK COMPRESSOR RELAY TO
CONNECTOR WIRE PROPERLY LOCKED IF
NOT THEN PROPERLY LOCK IT.
5.COMPRESSOR GETTING HIGH CURRENT
CHECK WIRING OF COMPRESSOR TO
CAPACITOR IF WRONG THEN CORRET IT.
6.COMPRESSOR FAULTY
REPLACE COMPRESSOR WITH NEW ONE
7.CAPILLARY BLOCK
REPLACE CAPILLARY WITH NEW ONE
8.CONDENSER COIL BLOCK
REPLACE CONDENSER COIL WITH NEW
ONE
COMPRESSOR
9.OUTDOOR FAN MOTOR FAULTY
REPLACE OUTDOOR FAN MOTOR WITH
NEW ONE
ODU
MOTOR
PROPER FITMENT
OF COIL SENSOR
PROPER CONNECTION
OF COMP.RELAY TO
CONNECTOR
COIL
CAPILLARY
PCB diagnosis in the field
Self-inspection function
1. This function is used to test whether all input and output items on the main control PCB and the display PCB are normal.
2.Press the emergency button to supply power, a buzzer sounds once after 0.5 seconds and then it enters into the self-inspection mode:
The self-inspection mode operates as follows:
→Each phase of the stepper motor acts for 0.5S
→ air door swinging opens
→ PG motor (high speed air) runs for 1S
→ the outdoor fan runs for 1S
→ the compressor runs for 1S
→ the four-way valve runs for 1S
→ air door swinging closes
→ the buzzer sounds short beep;
→7 segment and 6 indicator led’s glows for 1S
→ the room temperature shows for 1s（On 0.5 s, Off 0.5 s）
→ the coil temperature displays for 1s
→ software version number shows for 1s
→ model code shows 0.5s
→ the 7 segment displays in order “00”“11”“22”“33”“44”“55”“66”“77”“88”“99” for 0.5s respectively
→ the following led’s are glows for 0.5 respectively:
°C led / Cool mode led / Heat mode led/Dry mode led / Fan mode led / Timer led / Turbo led .
3. In the process of self-inspection, if a fault occurs, it will report the fault and stop the self-inspection; in case of no fault,
the driving signals in two columns will be output in cycle and it will stop after 5 cycles.
PCB check process before removing for replacement
a)Control PCB checking
1.Check all components are intact on control PCB as shown in picture ,if not then connect it
2.Check tracks of the PCB is broken or burnt
3.Check if any component is burnt or blown
4.Check power supply in coming in fuse /transformer area
5.Check relay for compressor & fan motor getting hot or chattering
6.Check for transformer T1-getting hot or any winding broken
7.Check capacitor, transformer, elico, mov, is burnt or dislocated
8.Check programming pins of CN2 connector should not touch each other, If touching then
separate them apart
Programming pins
9.Check F1 fuse is properly fitted ,if not then properly fit it, it should touch fuse holder properly
Properly fitment of fuse
PCB check process before removing for replacement
b)Display PCB checking
1.If any of the led of display not glowing then check any wire cut of connector, if cut then
connect it
2. If 7 segment or other led’s not glowing properly, then check
i)whether there is soldering short on display connector CN9 ,if present then remove
that shorting
CN9 display connector
ii)Check whether any soldering short in IC1 IC is there, if present then remove it
IC1
How to run AC in worst condition
If compressor works in good condition you can run AC for half an hour by
commissioning mode
Commissioning: press the emergency button and hold it for 5s until the buzzer beeps twice, then the controller will enter commissioning
mode. Press down and hold the button for another 5s, commissioning will be stopped. The commissioning lasts 30min, and the cooling
mode icon will start blinking
a. During commissioning, the determination conditions for room temperature sensor will become ineffective, the compressor will start
normally after 3 minutes of protection (no 3min protection if initially powered), the indoor fan will blow at high speed, the machine will
work in cooling mode, and vertical swing angle will set to angle 3.
b. No anti-freeze or over temperature protection during commissioning.
c. Press and hold emergency button for 5s, then the commissioning will be stopped.
d. The 7 segment displays (Tr) room temperature during commissioning, If the emergency button is pressed once while it is showing room
Temp, the 7 segment will display (Te)coil temp. ,and press again to show room temp(Tr)
e. Auto Clean Function do not run under commissioning condition
Care in field for sending defective PCB
1.Make inspection sheet ,mention model no., serial no. of PCB in addition to other component
data like Customer name, complaint no. etc.
2Defective component area to be marked in PCB
3.Proper packing with foam poly bag/ bubble bag & carton to be used for sending factory analysis
4. If PCB not marked or not properly packed then factory cannot inspect that PCB properly.
Proper packing of PCB