Wiring a Bathroom GFI Outlet and Light Switch


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Electrical Wiring for a Bathroom GFI Outlet with a Light Switch: Wiring Diagrams for GFI Outlets


Bathroom GFI Outlet Wiring with a Light Switch

Electrical Question: I’m trying to wire a GFI outlet in my bathroom then install a piggy back or double switch for two light switches with no success. I have power to the GFI outlet and power to the first switch but the light will not work. What am I doing wrong?

This electrical question came from: Bob, a Homeowner from Woodbine, Georgia.

Dave’s Reply:

Thanks for your electrical question Bob.

Electrical Wiring for a Bathroom GFI Outlet with a Light Switch

  • Check to make sure that the white neutral wires are connected properly.
  • Understand that if the GFI outlet will be protecting the light fixtures then the white neutral wire for the light fixtures must be wired through the GFI outlet the same as the black or power wire.
  • If the light fixtures will not be protected by the GFI outlet then the black power for the light fixtures is spliced to the power wire that connects to the LINE side of the GFI outlet.
  • The white neutral wire for the light fixtures is connected to the white neutral wires that connects to the LINE side of the GFI outlet.

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Wiring Diagrams for  GFI Outlets

The features and benefits of GFCI outlets and receptacles will give you a clear understanding of the importance why these safety devices are required by electrical code to help protect you and your family against accidental electrical shock hazards.

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4 Responses to “Wiring a Bathroom GFI Outlet and Light Switch”
  1. Dave Rongey says:

    Hi Rhonald,
    To provide GFCI protection for the outlet on the light fixture be sure that the supply circuit has GFCI protection. This is typically accomplished when there is a GFCI outlet in the bathroom which provides power to the light fixture, or the circuit breaker which supplies power is a GFCI circuit breaker.
    Dave

  2. rhonald says:

    I’m currently updating a small bathroom in my home and the bathroom light also has an outlet which is also connected to the switch. How do I convert that to a GFI while also replacing the light fixture to a bath fan/light combo? Thank you.

  3. tr says:

    How do you wire a new GFI from start with a light switch? I have a GFI, a light fixture and a light switch. There is a main feed from breaker box a wire for light and a switch to add. How do I make a complete circuit.

  4. Russ says:

    I need to install a GFCI to a double light switch that switches a light and a disposal

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