3 IPM malfunction or IGBT over-strong current protection
☆
X P0
4 Over voltage or too low voltage protection O O P1
5 Over voltage or too low voltage protection O
☆
P1
6 Inverter compressor drive error X
☆
P4
7 Inverter compressor drive error
☆
O P4
8 Inverter compressor drive error
☆ ☆
P4