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Diagnostics
Change Temp Sensor
Is Freezer Temp Sensor
normal?
Start
NO
YES
Connector contact trouble
/re-insertion
Is the insertion of MAIN PCB
connector(CN30) normal?
NO
YES
Short between connector Sensors
Is the connection between
MAIN PCB connector(CN30) and Temp
Sensor(yellow) normal?
NO
YES
Check soldering fault,short,
Lead Touch
Is MICOM Pin#57 input
voltage normal?
NO
YES
Change MAIN PCB
Change Defrost Sensor
Is Defrost Sensor
normal?
Start
NO
YES
Connector contact trouble
/re-insertion
Is MAIN PCB (CN30)
insertion normal?
NO
YES
Short between connector Sensors
Is the connection wire between
MAIN PCB connector(CN30) and
Defrost Sensor (blue) normal?
NO
YES
Check soldering fault, short,
Lead Touch
Is MICOM Pin#58 input
voltage normal?
NO
YES
Change MAIN PCB
4) Defrost Sensor trouble
3) Freezer Temp Sensor trouble