Gree error code E7
What it means
Mode conflict between indoor and outdoor units.
Possible causes
Indoor units connected to a common outdoor set to different modes Configuration mismatch in multi-room system Control logic detecting incompatible operating demands
Suggested fix
Ensure all connected indoor units are set to compatible modes (for example all cooling or all heating) and verify configuration settings; adjust any incorrect system settings.
Safety first. Isolate the power supply before inspecting any unit. Refrigerant-circuit
and electrical repairs must be carried out by a qualified, registered technician.
Other Gree codes
- C5 — Configuration jumper or PCB setup error.
- CC — Outdoor drive board memory chip malfunction (replace outdoor drive board if persistent) (CGIF/GCIF inverter cassette).
- 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).
- E2 — Indoor anti-freezing protection (evaporator temperature below protective value; compressor and outdoor fan stop) (CGIF/GCIF inverter cassette).
- E3 — Midwall: Low pressure protection. CGIF/GCIF inverter cassette: Compressor low-pressure / refrigerant-lacking protection (also shown during refrigerant recycling mode).
- E4 — Compressor high discharge temperature protection (locks out after 6 occurrences) (CGIF/GCIF inverter cassette).
- E5 — Overcurrent protection on compressor or main circuit.
- E6 — Communication failure between indoor and outdoor main boards (or display board and indoor unit) (CGIF/GCIF inverter cassette).
- E8 — Indoor fan motor malfunction (no fan signal for 30 s; locks out after 6 events in an hour) (CGIF/GCIF inverter cassette).
- E9 — Water-full / overflow protection (water level switch cut off for 8 s) (CGIF/GCIF inverter cassette).