Fan is making an unusual noise
Your fan sounds different than expected while running? Follow these troubleshooting steps.
- Check whether the noise is present at all speeds or only one range of speed (e.g., only below 20% or when coming to a stop).
- Check that the fan is hanging plumb, horizontally level, and free from wobble as it runs.
- Record a brief video of the noise.
- Remove AC power while the fan is running. Note whether the noise stops immediately (indicating an electrical source) or continues as the fan slows with inertia (indicating a mechanical source).
- Record the serial number information found on the gear-reducer nameplate (varies by model/series) and contact Customer Support.
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