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A ceiling fan at rest in a quiet study

Ceiling fan not working or noisy

The simple checks from a manual, then an electrician.

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First checks

One maker's manual lists simple first checks, including these: make sure the power switch is on, check that the circuit breaker is on, and make sure the blades spin freely. Leave any check inside the fan housing to a licensed electrician.

Noise

The same manual says to make sure the blades are properly installed and to check for cracked blades; if one is cracked, it says to replace all of the blades. A humming motor on a regular dimmer is covered in Ceiling fan controls: chains, remotes, and walls

Light not working

Check the bulb against the fixture label and the manual. If a correct new bulb does not fix it, or the light flickers, call a licensed electrician.

Stop and call

NFPA says to call a qualified electrician for breakers that trip often, burning smells, or flickering lights. Do not open the fan housing or canopy yourself.

Sources: Hunter Fan, Warrant Ceiling Fan Installation Manual (PDF); NFPA, Electrical Safety Checklist (PDF); CPSC, Guide to Home Wiring Hazards (PDF). Brand names belong to their owners. We are not affiliated with or endorsed by them.

FAQ

NFPA lists that as a reason to call a qualified electrician.
We cannot diagnose it. The CPSC lists sizzles or buzzes from the electrical system as a warning sign.

General information only. Ceiling fans and light fixtures are electrical equipment. Hire a licensed electrician for any installation, wiring, electrical box, switch, or light kit work, and follow the fan maker's manual and your local electrical code. Before cleaning, changing a bulb, or checking a fan, turn it off and let the blades stop and the bulbs cool; turn off power at the circuit breaker before any work near the fan's wiring. Use a stable ladder, and if you are not comfortable working overhead, call a pro. Never use a bulb above the maximum wattage marked on the fixture. If a fan or light flickers, buzzes, smells hot, or trips a breaker, stop using it and call a licensed electrician.

Next: flicker and buzz

When to call an electrician.