Troubleshooting with LED SiBE121021_C
288 Service Diagnosis
1.2 Outdoor Unit
The outdoor unit has one green LED (LED A) on the PCB. When the LED A blinks, the
microcomputer works in order.
There are a green LED (LED A) and red LEDs on the outdoor unit PCB. The LED A indicates
microcomputer operation condition. In normal condition, the LED A is blinking and the other
LEDs are OFF.
Even after the error is canceled and the unit operates in normal condition, the LED indication
remains.
Service monitor PCB
3 or 4 room model 5 room model
LED A
LED 1
LED 2
LED 3
LED 4
LED 1
LED 2
LED 3
LED 4
LED 5
(R12853)
LED A
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