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—What you are noticing

A ceiling fan that wobbles or makes noise

A gentle wobble is common. A fan that sways more over time, rattles or knocks is telling you something has worked loose.

Ceiling fans can wobble because blades are unevenly weighted or bent, blade screws have loosened, or the canopy is not seated properly. These are common and fixable. Noise from the motor — humming that changes with speed — often comes from the speed controller, particularly electronic regulators not matched to the fan.

This guide describes what people notice and what is safe to do. It does not diagnose your installation; only someone who has seen it can.

The part that matters most for safety is the fixing. A fan hangs from a hook or bracket fixed to the ceiling slab, and that fixing must carry the fan’s weight and its movement. A wobble that is getting worse, a knocking sound from the ceiling or visible movement of the canopy means the fan should be switched off until the fixing is checked.

01In short

The points that matter most

  • Balance and blades

    Uneven or bent blades cause most wobble.

  • Controller hum

    Speed controllers can make fans hum.

  • The fixing carries everything

    Movement at the ceiling is a safety concern.

02Detail

What gets checked

  • Blades and balancing

    Blade screws tightened and balance corrected.

  • Mounting

    Hook or bracket, ceiling fixing and canopy seating.

  • Controls

    Regulator type and wiring, especially if the fan hums.

03Checklist

Note this

  • When it wobbles

    At all speeds or only high speed.

  • Where noise comes from

    Blades, motor, canopy or ceiling.

  • Recent changes

    A new regulator, cleaning or blade replacement.

04Questions

Questions people ask

Is some wobble normal?
Slight movement can be; increasing wobble or knocking is not.
Why does my fan hum on low speed?
Many electronic regulators cause hum at lower speeds.
Can I balance the blades myself?
Balancing kits exist, but the fixing should be checked if movement is significant.

05Related

Related guides

This guide sits under troubleshooting. All topics are on the guides page.

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Fan wobbling more than before?

Tell us how it moves and sounds. We will check the fixing, balance and controls.

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