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

Disconnect terminals.

Step 3

Prize up the buckle and

disconnect the terminal.



Step 4

Unscrew the mainboard.


Step 5

Remove the mainboard.

Reverse above steps to install a new board. 

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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