Caution for Diagnosis SiBE04-809
72 Service Diagnosis
1. Caution for Diagnosis
The operation lamp flashes when any of the following errors is detected.
1. When a protection device of the indoor or outdoor unit is activated or when the thermistor
malfunctions, disabling equipment operation.
2. When a signal transmission error occurs between the indoor and outdoor units.
In either case, conduct the diagnostic procedure described in the following pages.
Location of
Operation Lamp
Troubleshooting
with LED
Indication
The outdoor unit has one green LED (LED A) on the PCB. The flashing green LED indicates
normal condition of microcomputer operation.
Operation lamp (green)
INTELLIGENT EYE lamp (green)
TIMER lamp (yellow)
ON/OFF switch
Indicator lamps
(R5072)
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