950-0289revB - 35 - July 22, 2022
INDOOR UNIT ERROR CODES
Display
INFORMATION
dF
Defrost
– Normal operation
CL
Active clean
– Normal operation
nF
Filter replacement reminder (power on display for 15 seconds)
FP
Freeze protection under 46ºF
– Normal operation
FC
Forced cooling
– Normal operation
AP
AP mode of Wi-Fi connection
CP
Remote switched off
EH 00/EH 0A
Indoor unit EEPROM parameter error
EL 01
Indoor and outdoor
units’ communication error
EH 02
Zero-crossing signal detection error
EH 03
Indoor fan speed has been out of control
EC 51
Outdoor unit EEPROM parameter error
EC 52
Condenser coil temperature sensor T3 open circuit or short circuit
EC 53
Outdoor ambient temperature sensor T4 open circuit or short circuit
EC 54
Compressor discharge temperature sensor Tp open circuit or short circuit
EC 56
Evaporator coil outlet temperature sensor T2b open circuit or short circuit
EH 60
Indoor room temperature sensor T1 open circuit or short circuit
EH 61
Evaporator coil temperature sensor T2 open circuit or short circuit
EC 07
Outdoor fan speed has been out of control
EH 0b
Indoor PCB / Display board communication error
EL 0C
Refrigerant leakage detection
PC 00
IPM malfunction or IGBT over-strong current protection
PC 01
Over voltage or over low voltage protection
PC 02
High temperature protection of compressor or High temperature protection of IPM
module or High pressure protection
PC 03
Low pressure protection
PC 04
Inverter compressor drive error
PC 08
Current overload protection
PC 40
Communication error between outdoor main chip and compressor driven chip
