F6
Gree
Indoor Fan Speed Out of Control / Feedback Error
Indoor unit displays F6; unit may not reach set temperature or may cycle erratically.
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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
Faulty indoor fan motor with Hall sensor, Blocked blower wheel causing incorrect speed feedback, Loose fan motor connector, Defective indoor PCB fan driver circuit
How to Fix / Troubleshooting
Safety first: Turn OFF power before accessing the indoor fan assembly.
- Step 1 – Inspect blower wheel: Remove filters and look for heavy dust buildup or foreign objects in the blower. Clean thoroughly with a brush and vacuum.
- Step 2 – Check motor connector: Remove the front cover and locate the fan motor connector on the PCB. Ensure it is fully seated and not corroded.
- Step 3 – Test different fan speeds: Restore power and run the unit in FAN ONLY mode. Cycle through fan speeds and listen for abnormal noises or speed fluctuations.
- Step 4 – Replace motor if needed: If the fan does not respond correctly or F6 persists, the indoor fan motor (with built‑in Hall sensor) may need replacement. This usually requires removing the entire blower assembly.
- Step 5 – PCB evaluation: If a new motor does not resolve F6, the indoor PCB fan driver circuit is likely faulty and should be replaced by a technician.
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Repair Difficulty
Hard
4/5
Required Part
Indoor Fan Motor
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