CHECK AND TEST 1
Press the button SW1 on mainboard, within 1 minute after powering on the appliance, to start manual defrost.
Test voltage from
terminal for defrost
heater in PCB area.
The value should be 230V.
PROCEDURE 1
Unscrew cover of
mainboard with a
Cross-head screwdriver.
Disconnect terminals.
Unscrew the mainboard.
Prize off the buckle to remove mainboard.
PROCEDURE 2
DIAGNOSIS 1