innovair PIN413C2V31 Service Manual page 35

No. Problems
1 standby for normal
2 Operation normally
3 IPM malfunction or IGBT over-strong current protection
4 Over voltage or too low voltage protection
5 Over voltage or too low voltage protection
6 Inverter compressor drive error
7 Inverter compressor drive error
8 Inverter compressor drive error
PIN624C2V31-O
There's a LED light on the outdoor PCB which is blue color.
After power on, it will be slow flash(0.2Hz) when the unit is in standby and quick flash (2.5Hz) if
the unit has some problems.
O（light） X（off）
LED4
(Green)
O
X
☆
O
O
X
☆
☆
☆（2.5Hz flash）
33
LED3
IU display
(Red)
X
O
X P0
O P1
☆
P1
☆
P4
O P4
☆
P4