CHECK AND TEST 1

Step 1

Unscrew cover of mainboard with a Cross-head screwdriver.

Step 2

Put detect pins of multimeter into output of mainboard.

Step 3

Power on the appliance and open fridge door.

Step 4

Test output of mainboard for LED light.

DIAGNOSIS 1


PROCEDURE 1


Step 1

Unscrew cover of mainboard with a cross-head screwdriver.

Step 2

Prize up the terminal
clicks (if any).

Step 3

Disconnect the terminals.

Step 4

Unscrew the mainboard.

Step 5

Pull out the buckle to remove the mainboard.

Reverse steps above to install a new mainboard.

CHECK AND TEST 2

Step 1

Power on the appliance, open fridge door, check if LED light is on or not.

Step 2

Press down the mechanical switch, check if LED light is off or not.

DIAGNOSIS 2


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