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Adding Ceiling Fan Wiring to a Switch Box

By Dave Rongey - Summary:

How to Wire a Combo Ceiling Fan and Light from a Light Switch: Guide to Wiring Switches for a Light Combo Ceiling Fan.

Guide to Wiring Switches for a Light Combo Ceiling Fan

Electrical Question: The wiring for a ceiling fanĀ  light combo was added with 14-3 cable.

  • The 14-3 cable goes to an existing single pole switch into a two-gang box that already housed three 14-2 cables.
  • One 14-3 cable that was connected to a GFCI outlet in the bathroom.
  • How do I add a second single pole switch for the new ceiling fan and light?
  • Is a 2-gang box to small?

This electrical wiring question came from: Cleo, a Homeowner from Phoenix, Arizona.

Additional Comments: Great!

Dave’s Reply:
Thanks for your electrical wiring question Cleo.

How to Wire a Combo Ceiling Fan and Light from a Light Switch

  • The ceiling fan requires a power source consisting of a hot, neutral and ground wire.
  • The power source cable in the 2 gang box must be identified and connected to the new switches for the ceiling fan
  • The black power source wire is controlled through the switch.
  • The wires leading to the ceiling fan and light combo are also connected to the switches.
  • White neutral wires for the circuit power source are spliced together.
  • Ground wires in the switch box are all spliced together.
  • NOTE: The wiring diagrams that are linked below will explain this and provide photos of ceiling fan installations as well.

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