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Diagnostics
MICOM voltage
DOOR OPEN : 5V
DOOR CLOSE : 0V
MICOM voltage
0 V alteration
2) When Refrigerator DAMPER does not operate
Forced Operation/
Temp Increase
Is DAMPER in
operating conditions?
Start
NO
YES
DAMPER is normal
Does DAMPER operates
with DOOR S/W pressed?
YES
NO
Change DOOR S/W
Is DOOR S/W normal?
NO
YES
Check soldering/
Change PCB
Is voltage of MICOM
#50 normal?
NO
YES
Check Connector CN75
again
Is insertion of CN75 of
MAIN PCB normal?
NO
YES
Check soldering/
Change PCB
Are voltage of MICOM
Pin #44,45,46 outputed?
NO
YES
Change DAMPER
Is DAMPER normal?
NO
YES
Check wire assembly and connections between
Dampers