CHECK AND TEST 1

Step 1

Unscrew cover of mainboard with a Cross-head screwdriver. 

Step 2

Put detection pins of
multimeter into output
of mainboard.

Step 3

Power on the appliance
and open the door. 

Step 4

Test output for LED lights
from mainboard.

DIAGNOSIS 1


PROCEDURE 1


Step 1

Unscrew cover of mainboard with a Cross-head screwdriver. 

Step 2

Disconnect terminals.

Step 3

Unscrew the mainboard. 

Step 4

Pull out the buckle. 

Step 5

Remove the mainboard. 

PROCEDURE 2


CHECK AND TEST 2


Step 1
Power on the appliance
and open the door.


DIAGNOSIS 2



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