Gree air conditioner error codes
Displayed on the indoor unit or remote when a fault is detected. Always isolate power before inspecting a unit — repairs belong to a qualified technician.
| Code | Meaning | Applies to | |
|---|---|---|---|
| C5 | Configuration jumper or PCB setup error. | All models | Details |
| CC | Outdoor drive board memory chip malfunction (replace outdoor drive board if persistent) (CGIF/GCIF inverter cassette). | All models | Details |
| E1 | Midwall: High pressure protection in the refrigeration circuit. CGIF/GCIF inverter cassette: Compressor high-pressure protection (high-pressure switch open for 3 s; unit locks out until power reset). | All models | Details |
| E2 | Indoor anti-freezing protection (evaporator temperature below protective value; compressor and outdoor fan stop) (CGIF/GCIF inverter cassette). | All models | Details |
| E3 | Midwall: Low pressure protection. CGIF/GCIF inverter cassette: Compressor low-pressure / refrigerant-lacking protection (also shown during refrigerant recycling mode). | All models | Details |
| E4 | Compressor high discharge temperature protection (locks out after 6 occurrences) (CGIF/GCIF inverter cassette). | All models | Details |
| E5 | Overcurrent protection on compressor or main circuit. | All models | Details |
| E6 | Communication failure between indoor and outdoor main boards (or display board and indoor unit) (CGIF/GCIF inverter cassette). | All models | Details |
| E7 | Mode conflict between indoor and outdoor units. | All models | Details |
| E8 | Indoor fan motor malfunction (no fan signal for 30 s; locks out after 6 events in an hour) (CGIF/GCIF inverter cassette). | All models | Details |
| E9 | Water-full / overflow protection (water level switch cut off for 8 s) (CGIF/GCIF inverter cassette). | All models | Details |
| EE | Outdoor main control board memory chip malfunction (replace main control board if persistent) (CGIF/GCIF inverter cassette). | All models | Details |
| F0 | Air inlet (indoor ambient) temperature sensor malfunction (CGIF/GCIF inverter cassette). | All models | Details |
| F1 | Midwall: Indoor ambient (room) sensor fault. CGIF/GCIF inverter cassette: Evaporator temperature sensor malfunction. | All models | Details |
| F2 | Midwall: Indoor evaporator temperature sensor fault. CGIF/GCIF inverter cassette: Condenser temperature sensor malfunction. | All models | Details |
| F3 | Midwall: Outdoor ambient temperature sensor fault. CGIF/GCIF inverter cassette: Outdoor ambient temperature sensor malfunction. | All models | Details |
| F4 | Midwall: Outdoor coil temperature sensor fault. CGIF/GCIF inverter cassette: Outdoor discharge temperature sensor malfunction. | All models | Details |
| F5 | Midwall: Compressor discharge temperature sensor fault. CGIF/GCIF inverter cassette: Wired controller ambient temperature sensor malfunction. | All models | Details |
| H1 | Defrost mode status indication (not a fault). | All models | Details |
| H3 | Compressor overload protection (overload switch open; locks out after 3 events) (CGIF/GCIF inverter cassette). | All models | Details |
| H4 | Overload protection — heat exchanger tube temperature above protective value (CGIF/GCIF inverter cassette). | All models | Details |
| H5 | Midwall: IPM (intelligent power module) protection. CGIF/GCIF inverter cassette: IPM protection. | All models | Details |
| H6 | Outdoor fan motor malfunction (no signal for 30 s; locks out after 6 events in an hour) (CGIF/GCIF inverter cassette). | All models | Details |
| H7 | Compressor motor desynchronizing (CGIF/GCIF inverter cassette). | All models | Details |
| LC | Compressor start-up failure (CGIF/GCIF inverter cassette). | All models | Details |
| LD | Compressor phase loss (CGIF/GCIF inverter cassette). | All models | Details |
| P0 | Drive module reset (CGIF/GCIF inverter cassette). | All models | Details |
| P5 | Compressor current protection (CGIF/GCIF inverter cassette). | All models | Details |
| P6 | Communication malfunction between main control and drive board (CGIF/GCIF inverter cassette). | All models | Details |
| P7 | IPM or PFC temperature sensor error (CGIF/GCIF inverter cassette). | All models | Details |
| P8 | IPM or PFC over-temperature protection (CGIF/GCIF inverter cassette). | All models | Details |
| PA | AC current protection (input side) (CGIF/GCIF inverter cassette). | All models | Details |
| PC | Current sense circuit error (CGIF/GCIF inverter cassette). | All models | Details |
| PH | DC bus over-voltage protection (CGIF/GCIF inverter cassette). | All models | Details |
| PL | DC bus under-voltage protection (CGIF/GCIF inverter cassette). | All models | Details |
| PP | AC input voltage abnormal (CGIF/GCIF inverter cassette). | All models | Details |
| PU | Charging circuit error (CGIF/GCIF inverter cassette). | All models | Details |
| U7 | 4-way valve direction-changing malfunction (heating mode) (CGIF/GCIF inverter cassette). | All models | Details |