Failure
E0 1 X EEPROM error
E1 2 X Indoor and outdoor communication error
E2 3 X Zero crossing detection error
E3 4 X Indoor fan speed has been out of control
E4
5 X
Indoor room temperature sensor T1 open
circuit or short circuit
E5
6 X
Evaporator coil temperature sensor T2 open
circuit or short circuit
EC
7 X Refrigerant leak detection error
F1
2 O
Outdoor temperature sensor T4 open circuit or
short circuit
F2
3 O
Condenser coil temperature sensor T3 open
circuit or short circuit
F3
4 O
Compressor discharge temperature sensor T5
open circuit or short circuit
F4 5 O Outdoor EEPROM parameter error
P0 1
☆
IPM malfunction or IGBT over-strong current
P1 2
☆
Over voltage or too low voltage protection
P2 3
☆
Temperature protection of compressor
top(only for 24k models)
P4 5
☆
Inverter compressor drive error
O（light） X（off） ☆（flash）
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