TROUBLE SHOOTING
56
Description
Item
Error code
FREEZER
SENSOR
The voltage should be within the range of
4.5V~1.0V between MAIN PCB CN30 #3
and #9.
The voltage should be within the range of
4.5V~1.0V between MAIN PCB CN30 #7
and #9.
The voltage should be within the range of
4.5V~1.0V between MAIN PCB CN30 #4
and #9.
The voltage should be within the range of
4.5V~1.0V between MAIN PCB CN30 #10
and #9.
The voltage should be within the range of
4.5V~1.0V between MAIN PCB CN30 #11
and #12.
The voltage should be within the range of
4.5V~1.0V between MAIN PCB CN51
#13 and #14.
The voltage should be 7V~12V
between MAIN PCB CN74 GRAY
and BLUE.
The voltage should be 7V~12V
between MAIN PCB CN74 GRAY
and GREEN.
The voltage should be 7V~12V
between MAIN PCB CN74 GRAY
and YELLOW.
It needs a Oscilloscope to do the error
check. So, it is more realistic checking
the error after replacing Main or Panel
PCB.
Disconnect MAIN PCB CN73 from PCB, and read the resistance between Black and
Brown wire terminals (Refer to the Wire Diagram for the resistance value). 0 Ohm
Heater Short Ohm Wire Cut or Slipped-out Terminal
Disconnect MAIN PCB CN70 from PCB, and read the resistance between Orange
and White wire terminals (Refer to the Wire Diagram for the resistance value). 0
Ohm Heater Short Ohm Wire Cut or Blown Thermistor
Disconnect MAIN PCB CN70 from PCB, and read the resistance between Orange
and Brown wire terminals (Refer to the Wire Diagram for the
resistance value). 0 Ohm Heater Short Ohm Wire Cut or Blown Thermistor
FRIDGE
SENSOR
FREEZER
DEFROST
SENSOR
FRIDGE
DEFROST
SENSOR
AMBIENT
SENSOR
CoolSelect
ZONE
SENSOR
FREEZER
FAN
ERROR
FRIDGE
FAN
ERROR
CONDENSOR
FAN
ERROR
FREEZER
DEFROST
ERROR
FRIDGE
DEFROST
ERROR
DAMPER
HEATER
ERROR
COMM
ERROR
How to do Self-Diagnosis
Connector Slipped-Out or Open-Contact, Wire Cut
or Short-Circuited, Abnormal Sensing Temp
(50 (122 )and over, or -50°C(-58 ) and lower)
Bad Feed-Back Signaling Wire Contact, Motor Wire
Slipped-Out, Defective Motor
Connector Slipped-Out or Open-Contact, Wire Cut or Short-
Circuited, Defective Thermistor, or When it keeps heating during
Fridge Defrost even after it does defrosting for 80 minutes.
Connector Slipped-Out or Open-Contact, Wire Cut or Short-
Circuited, Defective Thermistor, or When it keeps heating during
Fridge Defrost even after it does defrosting for 80 minutes.
Damper Heater is sensed as open error due to
Connector Slipped-Out or Open-Contact, Wire Cut.
No communication between MICOM MAIN and
PANEL => The PC E error code will light up with
alarming sounds.
Same as the above
Same as the above
Same as the above
Same as the above
Same as the above
Same as the above
Same as the above
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