Calm a shaking ceiling fan by replacing its worn-down box.
We’ll show you step-by-step how to install a ceiling fan box.
Ceiling fansare heavy, and they vibrate.
Test to confirm the power is off and remove the existing ceiling fixture.
The box must be mounted firmly by attaching it directly to a framing member or using a fan-rated brace.
Replacing a ceiling fan electrical box is a messy job.
Work carefully to avoid cutting through wires hidden in the ceiling.
Our steps below show you how to do it carefully and successfully.
The box is probably attached to a joist with screws or two horizontally driven nails.
Force the box loose by hammering a 2x4 into it.
Pry Box
Insert a flat pry bar between the box and the joist.
Pry the ceiling fan box away from the joist.
You may need to pry out a staple anchoring the cable to the joist.
Work carefully to avoid unnecessary damage to the ceiling.
Disconnect the cable from the box.
If the box has a cable clamp, remove the locknut.
Tighten Brace and Bolt
Tighten the brace with a wrench or groove-joint pliers.
Attach the U-bolt to the brace and slide the box up through it.
Install a braced ceiling fan box.
Screw the fan’s mounting bracket directly to a nearby joist.
The plate will be off-center, so you may need a medallion to cover the hole.
Pancake Box
Older pancake boxes mount with screws driven into a framing member.
Remove the screws and pry out the box.
Carefully cut through the nails with a reciprocating saw.