950-0265revC - 21 - November 30, 2020
TROUBLESHOOTING
Indoor Unit Error Code Display
Display
LED STATUS
E0
Indoor unit EEPROM parameter error
E1
Indoor and outdoor units communication error
E2
Zero-crossing signal detection error
E3
Indoor fan speed has been out of control
E4
Indoor room temperature sensor T1 open circuit or short circuit
E5
Evaporator coil temperature sensor T2 open circuit or short circuit
E7
Indoor PCB / Display board communication error
EC
Refrigerant leakage detection
F0
Overload current protection
F1
Outdoor ambient temperature sensor T4 open circuit or short circuit
F2
Condenser coil temperature sensor T3 open circuit or short circuit
F3
Compressor discharge temperature sensor T5 open circuit or short circuit
F4
Outdoor unit EEPROM parameter error
F5
Outdoor fan speed has been out of control
P0
IPM malfunction or IGBT over-strong current protection
P1
Over voltage or over low voltage protection
P2
High temperature protection of compressor top diagnosis and solution
(only for 9k,12k models)
P3*
Outdoor ambient temperature too low.
P4
Inverter compressor drive error
P5
Indoor unit mode conflict (multi-zone ONLY)