CHECK AND TEST 1

Step 1

Unscrew cover of mainboard with a Cross-head screwdriver.


Step 2

Check if terminal in PCB area is pushed to final
position.
If not, reinsert it to final position.

Note: the photos shown
are just for example,
they are not actual
images of the product.

Step 3

Set multimeter to resistance gear.

Step 4

Measure resistance of heater from terminal in
PCB area.

Step 5

Take note of value.

Step 6

Measure the temperature of air duct, near the defrost temp. sensor.
Use measured temperature to find the standard resistance value in
Temperature-Resistance Chart for Sensor.

DIAGNOSIS 1


PROCEDURE 1


Step 1

Remove all drawers.

Step 2

Remove all glass shelves.


 

Step 3

Remove the upper air duct.
a. prize up and remove the decorative cover.


b. Prize up the buckle on the air duct with slotted screwdriver, then remove the upper air duct.


Step 4

Dismantle the air duct. a. Unscrew the screws (total four) with Cross-head screwdriver.  

b. Catch the lower air duct and pull down the air duct.  

c. Pay attention to the connectors when pulling out the air duct.

d. Disconnect the terminal for fan motor. Disconnect the terminal for defrost sensor.

e. Move the air duct out of the fridge compartment.

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 shown 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 fridge, and take note of it.

Step 7

Measure the temperature of defrost temp. sensor.

DIAGNOSIS 2


CHECK AND TEST 3

Step 1

Set multimeter to resistance gear.

Step 2

Put detector into one end of wires in PCB area.
Put another detector into end of wires behind air duct.

DIAGNOSIS 3


PROCEDURE 2


Tip 1

Make sure the sealing sponges are in good
condition.

Tip 2

After pushing air duct into place, you should
hear clicking sounds at 8 buckle positions. If not, repeat again.


Tip 3

Check to see if there is a wide gap between air
duct and cabinet. If there is, reinstall air duct.

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