- Error Code: E0 Description: Indoor and outdoor communication fault
- Error Code: E1 Description: Indoor/outdoor communication abnormality
- Error Code: E2 Description: Return air thermistor fault
- Error Code: E3 Description: Indoor fan speed malfunction
- Error Code: E4 Description: Outdoor unit EEPROM parameter error
- Error Code: E5 Description: Outdoor compressor motor lock/overload
- Error Code: E6 Description: Compressor start-up error/short cycle
- Error Code: E7 Description: DC fan motor fault
- Error Code: E8 Description: Overcurrent protection
- Error Code: E9 Description: Electronic expansion valve coil malfunction
- Error Code: EA Description: Outdoor unit detection error
- Error Code: EE Description: Water pump malfunction
- Error Code: F3 Description: Discharge pipe temperature sensor error
- Error Code: F4 Description: Outdoor unit temperature sensor error
- Error Code: F6 Description: Refrigerant overcharge protection
- Error code 1C: Outdoor unit computer communication error
- Error code 1D: 2-way valve temperature sensor error
- Error code 13: Serial forward transfer error
- Error code 15: Compressor temperature sensor error
- Error code 16: Pressure switch abnormal, Pressure sensor abnormal
- Error code 17: IPM protection
- Error code 18: CT error
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