31
6-7. Defrosting Failure
D-sensor is
OK?
Change sensor
Defrost Heater
is OK?
Change the heater
Temp. fuse is
OK?
Change temp. fuse.
Power on the
appliance for some
time.
Enter A/S defrost
mode
Defrost heater
is working?
Wire
connection is
OK from M-
PCB?
Repair
Heater relay is
OK?
Change the relay.
Change Main PCB
check
Check resistance between CN6-No.3 and
No.4. ( resistance 0 : disconnection,
resistance
∞
: short )
Check 5
th
relay on Main-
PCB if voltage is 12V or
not.
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
Start
- Refer to the 4-5.
(Forced Defrost)