SiSG121917E
Troubleshooting with LED
Part 6 Service Diagnosis
106
2.2 Outdoor Unit
The outdoor unit has a green LED (LED A) and red LEDs (LED 1 ~ LED 5) on the service
monitor PCB.
When the microcomputer works in order, the LED A blinks, and when the system is in normal
condition, the red LEDs are OFF.
Even after the error is canceled and the unit operates in normal condition, the LED indication
remains.
Ser
v
ice monitor PCB
The ill
u
stration is for 4-room model
as representati
v
e.
LED A
LED 1
LED 2
LED 3
LED 4
50/65/80 class
90 class
LED A
LED 1
LED 2
LED 3
LED 4
LED 5
