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Exhaust Fan Extremely noisy
- Turn off the power to the fan at the circuit breaker before inspecting or doing any work.
- Remove the fan cover and inspect the fan blades for dust buildup. Clean the blades if needed. Dust can cause imbalance and noise.
- Check that the fan blades spin freely by spinning them with your hand. Stiff or grinding blades can cause noise.
- Listen closely to the type of noise the fan is making. Grinding, rattling, squeaking noises point to different issues.
- Check that the fan is secure in the housing and not rattling around. Tighten screws if needed.
- Inspect the fan motor for wear and overheating issues if noise is mechanical. Replace motor if worn out.
- Check that fan blade is balanced and aligned. Bent blades can cause wobble and noise. Carefully bend back into shape if needed.
- Lubricate fan motor and brackets with a small amount of machine oil like 3-in-1 oil. Squeaks may indicate lack of lubrication.
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