How to Install a Dimmer & Light Switch for a Ceiling Fan

Ceiling fans may be controlled from a wall switch to have variable speeds. However, a standard light dimmer switch should not be used and can be a fire hazard when used with ceiling fans. Instead, fan speed controllers designed specifically for use with ceiling fans should be used. Some models will control both the fan speed and the light. The project involves removing the existing wall switch and making the connections to the new fan speed control switch.

No-contact voltage tester
Fan speed controller
Philips and flat screwdrivers
Long nose pliers

Instructions

- 1
  Turn on the fan and set the pull chains for the highest speed setting. Turn the fan off at the wall switch. Turn off the circuit breaker for the fan. Remove the switch cover plate and use the no-contact voltage tester to make sure the power is off. Put the probe close to the black wire inside the switch box.
- 2
  Remove the screws holding the switch in the electrical box and gently pull the switch out. Remove the two black wires from the switch terminals with a screwdriver. Clip the bent wire ends off with the wire stripper cutter and strip away 3/4-inch of insulation.
- 3
  Connect each black wire on the fan speed controller to a wire from the old switch. Twist the bare ends together and cap with a wire nut. Connect the green ground wire to the bare ground wires in the box and cap them with a wire nut.
- 4
  Fold the wires behind the fan speed controller as you push it into the electrical box. Secure the controller to the box with the supplied screws or use the screws that held the switch in place. Install the cover plate to complete the installation.
- 5
  Turn on the circuit breaker and test the new fan controller by trying various speeds. Do not try to operate the fan's pull chains as this may damage the speed controller or fan or cause them to overheat.

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