CHECK AND TEST 1

Step 1

Unscrew with cross head screw driver. 

Step 2

Remove the mainboard
cover.

Step 3

Check if terminal is pushed into final position. 

DIAGNOSIS 1


CHECK AND TEST 2

Step 1
Check if terminal is filled with foam.


Step 2

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

Step 3

Turn power output of transformer to DC 12V. 

Step 4

Supply power from terminal in PCB area.

DIAGNOSIS 2


PROCEDURE 1

Step 1

Pull out the drawers.

Step 2

Take out the shelves.

Step 3

Unscrew the 4 screws.

Step 4

Hold the bottom of air duct and pull it out.

Step 5

Disconnect the terminal of fan motor.

Step 6

Remove air duct.

CHECK AND TEST 3

Step 1

Check if terminal is pushed into final
position. Re-insert the terminal.

Step 2

Check if the wires are damaged or not.

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.

CHECK AND TEST 4

Step 1

Use same power source in step 5 to test fan from terminal in the back of air duct.

DIAGNOSIS 4

CHECK AND TEST 5

Step 1

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

Step 2

Check whether wire order in foam is correct.
Set multimeter to resistance gear.

Step 3

Put detector into one end of wires in PCB area.

Step 4

Put another detector into end of wires behind air duct.

DIAGNOSIS 5
DIAGNOSIS 6
PROCEDURE 3

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.

CHECK AND TEST 6

Step 1

Assessment method for judging reworking.
Heat fridge sensor position.

Step 2

When compressor is running, open freezer door to check if fan is running.

DIAGNOSIS 7
PROCEDURE 4

Tip 1

Before installing the air duct, please tie all wires
together.

Tip 2

Before installing the air duct, please fix cord of
fan well.

Tip 3

Insert left side first, then other side. Make sure
the cavity on the side is aligned with the ribs on
inner liner.

Tip 4

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