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TROUBLESHOOTING
9) If Pantry Room Damper Heater has trouble
Replace Damper
Is Damper Heater
normal?(about145ohm)
Is MAIN PCB connector
(CN91) inserted correctly?
Is the input voltage of
IC02 MICOM #42 normal?
Start
NO
YES
YES
YES
Bad contact of connector/ insert correctly
NO
1) Recheck the wire
2) Replace PCB MAIN
NO
Normal(recheck)
Measure the resistance
between - after
CN91 connector open 145ohm 7%
ERROR Code
Checking method of Pantry Room Damper
resistance CN91#1(Black) #2(Brown)
** : Open(wire disconnection, heater
disconnection) trouble 0: Short trouble
2¢(-17¡) is recommended 38¢(3¡) is recommended
Start
YES
YES
YES
Initial
power On
Damper
heater off
Damper
heater On
3.5V~4.8V
MICOM
#42
condition
3.5V~4.8V
0V
Heat
MICOM
(IC01)
Initial Power
On
Heater Off
Working
Heater
Water tank #6 3.5V ~ 4.8V 3.5V ~ 4.8V 0V
Ice Pipe #3 3.5V ~ 4.8V 3.5V ~ 4.8V 0V