CHECK AND TEST 1

Step 1

Unscrew cover of mainboard with a Cross-head screwdriver. 

Step 2

In PCB area, check if terminal is pushed into final position. 

Step 3

In PCB, check to see if terminal is filled with foam.

Step 4

If so, use tweezers to remove it. 

Step 5

In PCB area, use multimeter to measure resistance value. 

Step 6

Take note of the result. 

Step 7

Measure the temperature of freezer air duct, close to sensor. 

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 if terminal is inserted to final position.
If not, please re-insert it to final position.

Step 2

Check if sensor is attached in proper position, as showing in picture.
If not, correct it.

Step 3

Check if wire of defrost sensor is broken.
IF YES, REPLACE IT WITH A NEW ONE.

Step 4

Disconnect terminal of defrost temp. sensor.

Step 5

Check if the terminal is stuffed with foam.
If so, use tweezers to smash it and remove.

Step 6

Measure resistance of defrost temp. sensor from terminal in freezer, and take note of it.

Step 7

Measure the temperature of defrost temp. sensor.

DIAGNOSIS 2


PROCEDURE 2


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. 


DIAGNOSIS 3


CHECK AND TEST 3

Step 1

Set multimeter to resistance gear.

Step 2

Use a wire to connect the terminals in PCB area and measure the resistance in foam side (as shown in photo).

DIAGNOSIS 4


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