How to Get Rid of the Humming Sound in a Ceiling Fan

When a ceiling fan makes a humming noise, a whole host of possible problems could be the cause. The way to get rid of the sound also presents a multitude of possibilities. These range from throwing away the fan to some fairly simple fixes. Getting rid of the noise can be frustrating because it is often a matter of trial and error.

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Step 1

Troubleshoot the motor. When a fan has a humming (or buzzing) sound, the motor is most likely the reason. A motor that lacks oil will burn out. Make sure the fan has the proper amount of oil. Many fans are maintenance-free, but some do require that you add oil. Add oil to the small hole above the motor. Run the fan for a day, if it has not been in operation for a long time. A humming fan can indicate the motor's bearings must be lubricated by the operation of the fan.

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Step 2

Tighten loose screws. A loose part can cause a noise. If a fan has a light fixture, tighten any screws there as well. Make sure the light bulbs are not touching their covers on a fan with a light fixture. Adjust covers so they are no longer in contact with the bulb. Tighten the screws of the plate where the fan is attached to the ceiling.

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Step 3

Look for an electrical problem. A dimmer switch can cause a fan to hum, and most ceiling fans are not made to work with a dimmer switch. Install the proper electric switch to stop the humming noise.

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Step 4

Check the fan's balance. An unbalanced fan can cause a humming noise. Balance it with a fan-balancing kit.

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Step 5

Run the fan at different speeds. One speed may produce more of a humming noise than others. Ceiling fans also often hum at lower speeds. Run the fan at a higher speed, a medium speed and lower speed. This may stop the humming.

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Step 6

Look for broken or bent blades. A damaged blade can create noise and must be replaced.