74
TROUBLESHOOTING
10) 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 ①-② after
CN91 connector open 145ohm ± 7%
ERROR Code
☞ Checking method of Pantry Room Damper
resistance CN91#1(Black) ↔ #2(Brown)
** ∞Ω: Open(wire disconnection, heater
disconnection) trouble / 0Ω: Short trouble
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
※ It could changed HEATER capacity by operation.
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