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Why-Does-My-Ceiling-Fan-Hum-Spyrka-Electric-NovatoCeiling fans should provide comfort, not pester you with humming, buzzing, or rattling. If your ceiling fan has become an earache, don’t put up with it any longer. There’s likely a small, easy fix — or else it’s simply time to replace.

Common Reasons Why a Ceiling Fan Might Hum

Used-up lubricant: New machine lube might be all you need to stop the incessant hum. Just be sure to avoid damaging the motor with chemical lubricant like WD-40. A safer bet is sewing machine oil or other light machine oil.

Uneven blades: Try to see if it looks like your blades were installed slightly off-kilter or if one has become loose. Even a large amount of dust on your ceiling fan can cause them to rotate unevenly. Anything that makes the blades operate unevenly can lead to a constant vibration or hum.

Light bulbs and fixtures: Perhaps the hum started after you changed a light bulb. Noisy operation might simply be due to a fixture being bumped or knocked loose.

Mounting system: The rod and mounting gear might be vibrating or rattling when the ceiling fan is in operation. There might be a relatively simple solution like replacing washers and brackets.

Speed settings: Does a dimmer switch control your ceiling fan? Not every ceiling fan works perfectly with dimmers. Does your ceiling fan have a complex or unusual system of different speed settings? Sometimes fans hum because of the mechanisms that control their speeds. These problems might require replacing the switch, adjusting settings, or changing the fan itself for a quieter model.

Mystery problems: Sometimes a humming ceiling fan simply has a bad part inside. Either you bought a lemon, or it has failed over time. When all else fails, it becomes likely that the culprit is some tiny flaw that even an expert would have trouble identifying and repairing—and full replacement might be the faster and better route.

What To Do About a Noisy, Humming Ceiling Fan?

Give your ceiling fan a little tune-up and try to diagnose the problem. Many of these causes can be fixed by tightening parts or replacing them with new pieces from your hardware store. The manufacturer may even sell individual replacement parts to fit your model.

Still stuck with an annoying hum? Stop living with the unpleasant noise and call for help—a professional repair or high-quality replacement will have you enjoying your air circulation without the racket.

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