Midea error code F3
What it means
Outdoor ambient temperature sensor fault.
Possible causes
Outdoor sensor physically damaged Broken or chafed sensor leads Connector corrosion at outdoor PCB
Suggested fix
Examine the sensor and wiring for weather or mechanical damage and compare sensor readings to actual ambient; renew the sensor or repair wiring if discrepancies are found.
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 Midea codes
- E1 — Communication error between indoor and outdoor units.
- E2 — Temperature sensor error (typically indoor air or coil sensor).
- E3 — Refrigerant leak detection or low system capacity protection.
- E4 — Compressor or discharge temperature error.
- E5 — Fan motor fault or abnormal fan speed.
- EC — Refrigerant leakage or compressor protection alarm.
- F0 — Low refrigerant or low load protection.
- F1 — Indoor ambient (room) temperature sensor fault.
- F2 — Indoor evaporator temperature sensor fault.