F3
AEG
Outdoor Fan Motor Fault
F3 displayed; unit may run fan only or stop cooling/heating.
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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 outdoor fan motor, Seized fan bearings, Obstruction in fan blades, Faulty fan capacitor (on non-inverter models), Defective outdoor PCB fan drive
How to Fix / Troubleshooting
Safety: Isolate power before touching the outdoor unit. Fan blades can start unexpectedly.
- Visual check: Inspect the outdoor fan for debris, ice, or objects blocking rotation. Remove obstructions.
- Spin test: With power off, spin the fan by hand. It should rotate freely. Stiff or grinding movement indicates bearing failure.
- Check capacitor (if fitted): On some AEG fixed-speed units, a separate fan capacitor is used. Look for a bulging or leaking capacitor and replace with the same µF rating.
- Inspect wiring: Ensure the fan motor connector is secure on the outdoor PCB and that wires are not burnt.
- Test operation: Restore power and start the unit. If the fan does not run but the compressor does, replace the AEG outdoor fan motor.
- If F3 persists after motor replacement: The outdoor PCB fan output may be faulty and needs professional diagnosis.
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Repair Difficulty
Hard
4/5
Required Part
Outdoor Fan Motor
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