CHECK AND TEST 1

Step 1

Check in PCB area.

Unscrew cover of mainboard with a cross-head screwdriver. 

Step 2

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

Step 3

The terminal is not pushed into final position: insert again to make sure that connections are good.

Check if terminal is filled with foam. 

Step 4

If terminal is filled with foam: use tweezers to pick foam out and insert the terminal into position again. 

DIAGNOSIS 1

CHECK AND TEST 2

Step 1

Turn power output of transformer to DC 12V.

Step 2

Supply power from terminal in PCB area. 

DIAGNOSIS 2


PROCEDURE 1

Step 1

Remove freezer shelf. 

Step 2

Lever 2 screw covers off. 

Step 3

Unscrew 2 screws. 

Step 4

Remove air duct:

a. Hold the decorative cover of air duct;

b. Pull air duct out; 

c. Disconnect the terminal of fan motor;  

d. Take air duct away. 

DIAGNOSIS 3


PROCEDURE 2

Step 1

Cut wire off from broken area. 

Step 2

Peel off the sleeves.

Step 3

Check to ensure proper wire order and connect them. 

Step 4

Tin soldering.

Step 5

Cover connection with electrical tape. 

Step 6

Set output of transformer to DC 12V to test fan from the terminal behind freezer air duct. 

DIAGNOSIS 3

Note

CHECK AND TEST 3

Step 1

Check if the terminal is filled with foam.

If so, use tweezers to remove foam. 

Step 2

Check if wire order in foam is right or not:

a. Set multimeter to resistance gear; 

b. Put detector into one end of wires in PCB area.

c. Put another detector into end of wires behind air duct. 

DIAGNOSIS 4

DIAGNOSIS 5

DIAGNOSIS 6

PROCEDURE 3

Tip 1

When reinstalling air duct, move wires out of the way to prevent crushing by air duct. 

Tip 2

After pushing air duct back into position, you should hear a clicking sound. If there is no click, please repeat again. 

Tip 3

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

If gap is large, re-install air duct. 

Tip 4

In freezer air duct area, check if terminal C is pushed into final position.

Redo it.