FC
Mitsubishi · MXZ-3C30NAHZ 30,000 BTU 3-Zone Hyper-Heat Multi-Zone Outdoor Unit
The outdoor fan motor has stopped or is not providing speed feedback to the outdoor control board. Causes: fan motor failure (worn bearings, winding failure), fan blade broken or loose on the motor shaft, wiring fault between the fan motor and PCB, motor connector loose, fan motor capacitor failure (on AC motor types). Check the fan blade for physical damage or obstruction. Spin the fan by hand — it should rotate freely. Test motor winding resistance. Check the motor connector on the outdoor PCB.
Error FC on the Mitsubishi MXZ-3C30NAHZ 30,000 BTU 3-Zone Hyper-Heat Multi-Zone Outdoor Unit means: Outdoor Fan Motor Error. The top-ranked community fix is “Test and Replace Outdoor Fan Motor or Capacitor” (hard difficulty, ~90 min, DIY cost: $15-$30). 2 community-ranked fixes available below.
Published February 2026 · 2 fixes · mini split
Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.
While many mini split repairs can be done safely at home, consider hiring a qualified technician if:
Average professional repair cost for this issue: $250-$400.
heat_pump · 2 fixes
heat_pump · 2 fixes
heat_pump · 2 fixes
heat_pump · 2 fixes
heat_pump · 2 fixes
Reverse Phase / Phase Loss Detection
Compressor Discharge Temperature Protection
Outdoor Heat Exchanger Thermistor Error
Compressor Overheating / High Pressure Switch Activation
Outdoor Subcooling Sensor / Pipe Thermistor Error
High Head Pressure Protection
Compressor Overcurrent Protection (CT Sensor)
Heat Sink / Power Module Overheat Protection
The Mitsubishi MXZ-3C30NAHZ 30,000 BTU 3-Zone Hyper-Heat Multi-Zone Outdoor Unit has 8 other known error codes:
Error code FC also appears on 5 other Mitsubishi models:
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