How to Wire a Speed Switch on a Fan

You can control the speed of your fan by wiring a speed switch into your wall. This will give you limited control over the room temperature. Unlike built-in fan cords that require you to reach up, a speed switch lets you change the fan's speed as easily as you turn lights on and off.

Instructions

- 1
  Turn off all electricity to any affected switches.
- 2
  Remove the existing switchplate cover with a flat-head screwdriver.
- 3
  Remove the existing on/off electrical switch, also by using a flat-head screwdriver.
- 4
  Gently pull the switch and its wiring out from the outlet box.
- 5
  Unscrew the wires from the terminals on the existing switch, again using a flat-head screwdriver. There will be two hot wires and a bare ground wire.
- 6
  Discard the old switch.
- 7
  Attach the two hot wires to the new speed switch, using the switch's screw terminals.
- 8
  Attach the bare ground wire to the green grounding lug screw on the back of the switch.
- 9
  Gently push the wired switch assembly back into place in the electrical box.
- 10
  Using the flat-head screwdriver, reattach the cover plate.

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