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 freezer 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 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
Step 1
Power on the appliance,
open freezer 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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