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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