Fujitsu AUXB04GALH Service Manual page 168

Trouble shooting 90
Error Contents :
Group remote controller hardware
Error
Details :
Condition of occurrence : When EEPROM can not be written, or the control port does not operate.
Release condition : Power is reset.
Cause 1 : Remote Controller is defective.
Replace Group Remote Controller.
Group Remote Controller (UTY-CGGY / CGGG)
Symptom :
Error Code display [ C 4 ]
OPERATION LED is flashing.
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