CHECK AND TEST 1



Step 1

Unscrew cover of mainboard with a Cross-head screwdriver.  

Step 2

Take of the cover of mainboard.  

Step 3

Power on the appliance and let it runs for at least 1 minute.










Step 4

Press the switch button on mainboard, then the appliance will enter manual defrost mode.

Note

Step 5

Test voltage of terminals for defrost heater using multimeter.

Step 6

Take note of the result and then power off to quit manual defrost.

DIAGNOSIS 1



PROCEDURE 1


Step 1

Unscrew cover of
mainboard with a
Cross-head screwdriver.

Step 2

Prize off the connector buckles.

Step 3

Disconnect the connectors.

Step 4

Unscrew the mainboard.

Step 5

Prize off the buckle to remove mainboard.  

Reverse steps above to install a new mainboard.

CHECK AND TEST 2


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