Gree error code F1
What it means
Indoor ambient (room) sensor fault.
Possible causes
Room thermistor open or short Connector loose at indoor PCB Damaged sensor wiring
Suggested fix
Measure thermistor resistance against Gree's reference table and inspect connector and cable; replace the sensor or repair wiring where readings or connections are defective.
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.
- E1 — High pressure protection in the refrigeration circuit.
- E3 — Low pressure protection.
- E5 — Overcurrent protection on compressor or main circuit.
- E7 — Mode conflict between indoor and outdoor units.
- F2 — Indoor evaporator temperature sensor fault.
- F3 — Outdoor ambient temperature sensor fault.
- F4 — Outdoor coil temperature sensor fault.
- F5 — Compressor discharge temperature sensor fault.
- H1 — Defrost mode status indication (not a fault).