F5
Chigo
Outdoor Fan Motor Feedback / Speed Sensor Fault
Indoor unit shows F5 and outdoor fan may not operate correctly; system may overheat or shut down.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Failed DC outdoor fan motor on Chigo condenser, Faulty fan speed feedback signal to outdoor PCB, Loose fan motor connector, Defective outdoor PCB fan driver circuit
How to Fix / Troubleshooting
Safety first: Turn off power before working on the outdoor unit.
- Step 1 – Visual inspection: Check that the fan blades are not obstructed and can spin freely by hand.
- Step 2 – Check connectors: Reseat the outdoor fan motor connector on the PCB. Look for corrosion or burnt pins.
- Step 3 – Test motor operation: Restore power and command cooling. If the compressor runs but the fan does not, the motor or PCB is suspect. A technician can measure DC voltage to the motor and verify feedback signals.
- Step 4 – Replace faulty component: If the motor receives correct voltage but does not spin, replace the outdoor fan motor. If no voltage is present, replace or repair the outdoor main PCB.
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Repair Difficulty
Hard
4/5
Required Part
Outdoor Fan Motor
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