Alliance error code F0
What it means
Low refrigerant protection.
Possible causes
Undercharged system after leak or incorrect charging Expansion valve malfunction causing low evaporator pressure Chronic small leaks
Suggested fix
Evaluate suction pressure and superheat and inspect for leak indicators; repair leaks and charge precisely by weight using appropriate recovery and charging equipment before resetting the fault.
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 Alliance codes
- E1 — Communication error between indoor and outdoor units (Midea-platform logic).
- E2 — Indoor temperature or evaporator sensor error.
- E3 — Refrigerant leak or low capacity protection.
- E4 — Compressor or discharge temperature error.
- E5 — Fan motor fault.
- EC — Refrigerant leakage alarm.
- F1 — Indoor ambient temperature sensor fault.
- F2 — Indoor evaporator temperature sensor fault.
- F3 — Outdoor ambient temperature sensor fault.