CHECK AND TEST 1

Step 1

Unscrew cover of mainboard with a cross-head screwdriver.

Step 2

Check if terminal is not insert final position. 

Step 3

In mainboard area, check if terminal is stuffed with foam. 


Step 4

Measure resistance of heater from terminal in PCB area. 

Step 5

Check the result.

DIAGNOSIS 1


PROCEDURE 1


Step 1

Remove the drawers 

Step 2

Remove the glass partition. 

Step 3

Remove the 3 screw covers. 

Step 4

Remove the 3 screws.

Step 5

Pull air duct out. 

Step 6

Disconnect the terminal of fan motor. 

Step 7

Remove the air duct. 

CHECK AND TEST 2

Step 1

Check to see if terminal is full of foam.

If yes, use tweezers to remove foam. 

Step 2

Ensure terminals behind freezer air duct are properly inserted. 

Step 3

Please press the button SW1 on mainboard (within 1 minute after powering on the appliance) to start manual defrost. 

DIAGNOSIS 2


CHECK AND TEST 3

Step 1

Connect 2 ends on terminal in PCB area. 

Step 2

Check the connection of wires in foam with multimeter. 

DIAGNOSIS 3


CHECK AND TEST 4

Step 1

Check if wires for defrost heater are broken or not. 

DIAGNOSIS 4


PROCEDURE 2


Step 1

Cut off the wire. 

Step 2

Peel off the sleeves.

Step 3

Ensure proper wire order and connect. 

Step 4

Tin soldering. 

Step 5

Cover point of connection with electrical tape. 

CHECK AND TEST 5

Step 1

Measure the resistance of heater from terminal in freezer. 

DIAGNOSIS 5


PROCEDURE 3


Step 1

Disconnect the terminal of heater. 

Step 2

Use screwdriver to remove the heat conductor (if any). 

Step 3

Use 6mm cross-head driver to unscrew on left and right. 

Step 4

Lift evaporator and heater 20mm, the bottom must be higher than the edge of the trough. 

WARNING:

Be careful not to deform pipes in red square during steps 4. 

Step 5

Loosen the clips for fastening heater. There are 8 clips in total. 

Step 6

Remove the heater.

Reverse above procedures to reinstall the heater. 

CHECK AND TEST 6

Step 1

Ensure terminals behind freezer air duct are properly inserted. 

Step 2

Power on and press
the button SW1 on mainboard (within 1 minute after powering on the appliance) to start manual defrost. 

DIAGNOSIS 6


PROCEDURE 4


Tip 1

When reassembling the air duct, move wires to prevent crushing with edge of air duct. 

Tip 2

After pushing air duct into position, it should make a click sound. If no click is heard, do it again.

Tip 3

Check to see if there is a large gap between air duct and cabinet.
If there is, re-install air duct again. 

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