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11-2. Compressor trouble
1. If compressor is off by refrigerator temperature, it is not run within five minutes minimum.
2. Compressor is not run during the defrost.
3. If the freezer sensor is not connected, compressor is not run due to low temperature detection.
Have passed 5 minutes after cut off?
Start
Check after 5 minutes
Is occurred the forced start alarm?
Exchange the main PCB
Exchange compressor relay on
the PCB
Is compressor run at the forced start?
Is impressed DC 12V to the both side
end of coil of compressor relay(RY72) on the
main PCB?
Exchange inferior
sensor
Is impressed between the gloomy line
and red line of CN70 AC 220V?
Check power cord connection
Check the connection of the lines of main PCB part
and compressor surrounding OLP, relay PTC
N
Y
Y
N
N
Y
Y
Y
Is the freezer/refrigerator
temperature detection sensor normal?
Pre-inspection
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