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Electrician Training Electrical Certification wiring recessed light fixtures Electrical Wiring Electrical Troubleshooting and Electrical Repairs wire outdoor light fixture Home Electrical Wiring Diagrams
wiring home generator and transfer switch wiring a 220 volt range cord outlet Wiring for GFCI Outlets Wiring Outlets and a Switched Outlet Installing and Wire Ceiling Fans and Remote Controls wire dimmer switch wiring diagrams for switches wiring a dryer cord and 220 outlet circuit breaker panel
Electrical Wire and Cable

Bathroom Electrical Wiring

bathroom-wiring Summary: Fully Explained Photos and Wiring Diagrams for Bathroom Electrical Wiring with Code Requirements for most new or remodel projects*.

How to Install Bathroom Electrical Wiring

Electrical Wiring Video

Install a Generator and Transfer Switch Panel

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Code requirements and energy efficient specifications now incorporate an energy saving design along with safety features that help to protect you and your family while enjoying your newly completed bathroom project.

Something to Consider:
Beautiful additions and upgrades to your bathroom can increase your home value, while providing tax incentives for you. Tax incentives may be available from your local electrical utility company.

Some local codes require the installation of fluorescent fixtures during new construction and remodeling projects.
Check with your local electrical utility provider or agency for more information*.

Bathroom Blueprint and Wiring Design Layout

Home electrical wiring for bathrooms - Plan Design by: Heidi Agler

Code requirements and energy efficient specifications now incorporate the following methods into a new or remodeled bathroom project.

Bathroom Electrical Code Requirements

Bathroom Wiring Diagram Occupancy Sensor Home electrical wiring for bathrooms lighting must be either: on dimmer switches, provide a "manual-on occupancy sensor", or be all fluorescent lighting.
Bathroom GFI Receptacle Bathroom receptacles are to be supplied by at least one 20 amp branch circuit. This circuit shall have no other outlets except bathroom receptacles. Bathroom outlets must be protected by a GFCI device. More about GFCI devices.
Bathroom Exhaust Fan Wiring Diagram
All bathroom exhaust fans shall provide a minimum of 5 air changes per hour. More about bath exhaust fans.
Jacuzzi Tub Wiring Hydro massage bathtubs and their associated electrical components must have GFCI - ground fault circuit interrupter.
All electric motors shall be readily accessible for servicing purposes.

Enjoy Your Bathroom Experience with these Improvement Ideas

Safety, Comfort and Practicality - Project Options for a Great Bathroom

Bathroom Electrical Circuit Wiring

GFCI Floor Heat Jacuzzi Tub

Ground Fault Protection Floor Heat Jacuzzi Tub
Bath Exhaust Fan Bath Light Exhaust Unit Heat Lamp Fan
Lighted Exhaust Fan Exhaust Fan with Lamp Exhaust Fan with Heater
Motion Light Switch Recessed Lighting Make Up Mirror
Occupancy Sensor Recessed Lighting Lighted Make-Up Mirror
Bathroom Lighting Lighting Dimmer Ceiling Fan
Vanity Fixture Romantic Dimmer Ceiling Fan
Vented Toilet Seat Electric Bidet Ceiling Fan
Vented Toilet Seat Bidet Speed & Light Control

Additional Bathroom Electrical Wiring Options

Home Electrical Wiring for Bathrooms
Ground Fault Circuit Interruption - Protected Receptacles


Exhaust Fan
Exhaust Fan and Light with Energy Saver Fluorescent Lights**
Exhaust Fan and Heat Lamp
Exhaust Fan, Light and Heat with Down Draft Blower
Ceiling Fan
Vented Toilet Seat -What a Great Idea!


Vanity Lighting with Slide Dimmer
Shower Stall - Flush Light


Lighted Make-Up Mirror

Comfort and Relaxation

Jacuzzi Tub
Steam Shower

Energy Savings

Occupancy Sensor - Ideal when used with Exhaust Fans

Questions about Bathroom Wiring

Question from Joe, a Homeowner in Mariposa, California:
My bathroom light and fan do not work when switched on, what could be the problem?

The age of our home is 30 years, and there is a problem in the guest bathroom where the light and fan do not work when switched on. Each has its own separate switch. There is one GFCI plug installed in the bathroom. The GFCI has two pair of wires; one pair (hot) is connected to the LINE connectors on the GFCI connector. The second set of wires are connected to the LOAD section. The GFCI appears to be okay.

Also, the adjoining master bedroom has two outlets that do not have power.

The circuit breakers in the electrical panel seems to be working fine, there’s 115vac on the output side. All wires on the output side leading into the house are tight.

Thanks for any suggestions you can offer in finding the problem.

Dave’s Answer:
Troubleshooting a Bathroom Electric Circuit Problem

Joe, I suspect that the affected bathroom circuit has lost connection with either the neutral or the power wire. The circuit wiring should be checked starting at the last device that is working. Often we find a faulty wire connection to a receptacle outlet, or a burnt wire splice in a wire connection. Removing the affected circuit components and replacing them with components of the same specifications will typically solve the problem and restore the circuit power.

  • How Can I Have a Light Switch that Has a Light In the Switch?

  • I have a ceiling light in my bathroom with two 3way switches. I want to add some sort of a light Or lighted switch that would be on when the bathroom light is on, how can I wire this?

    • Switching a Bathroom Fan and Light Separately

    • How to Wire Your Bathroom so the Lights and Fan are on Separate Switches – The key factor is to understand where the power source enters the circuit – The power source will either enter at the switch box or up at the light fixture or the exhaust fan.

      • Getting an ADA Approval for a Bathroom

      • How to identify the ADA Bathroom requirements and definitions for an ADA Approval

        • Installing a Bath Exhaust Fan

        • How to Replace a Ceiling Light Fixture With a Bath Exhaust Fan

          • Bathroom Electrical Circuit Troubleshooting

          • Replacing GFI Outlet Leads to Sparks: I was replacing a GFCI receptacle,I had accidentally pushed the travelers together with a flat head screwdriver, so the wires sparked, and now my whole bathroom and bedroom, has no power whats so ever

            More About Bathroom Wiring


            Robert asks::
            The other night we hooked up a new sauna. While running the sauna one of the kids started the washer and it tripped the circuit breaker. I reset circuit breaker but now I have no power to the lights fan in the downstairs living room. On the east wall of living room two outlets have no power and the downstairs bathroom light switch has no power. I removed and replace circuit breaker and removed and replace both outlets in the living room. I also replaced the light switch in the bathroom, but still no power? All other outlets work in the downstairs living room. I'm Puzzled

            Dave's reply:
            Robert, I can't help to be curious about the addition of the sauna circuit and how it was installed. When something like this occurs, I always work the problem backwards starting with the most recent work that has been done and begin an inspection of what exactly was done and by who, and of course was it done according to code and inspected, with the GFCI for the sauna being tested. Once the sauna circuit installation has been verified to be ok, then a process of testing and inspections would need to take place starting at the electrical panel by a qualified electrician in order to find out exactly what the cause is.

» You Can Avoid Costly Mistakes! «

Here is How to Do It:
Wire It Right with the help of my Illustrated Wiring Book

Great for any Home Wiring Project.

  electrical wiring  

Complete Guide to Home Electrical Wiring

Perfect for Homeowners, Students,
Handyman, Handywomen, and Electricians
Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
How to Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
....and much more.

Electrical Tips to Help You Wire it Right

The Safest Way to Test Electrical Devices and Identify Electric Wires!

The Non-Contact Electrical Tester
This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester that I use to easily Detect Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.

The Quickest Way to Check for Faulty Electrical Wiring!

The Plug-In Outlet Tester
This is the first tool I grab to troubleshoot a problem with outlet circuit wiring. This popular tester is also used by most inspectors to test for power and check the polarity of circuit wiring.
It detects probable improper wiring conditions in standard 110-125 VAC outlets Provides 6 probable wiring conditions that are quick and easy to read for ultimate efficiency Lights indicate if wiring is correct and indicator light chart is included Tests standard 3-wire outlets UL Listed Light indicates if wiring is incorrect Very handy and easy to use.

Strip Off Wire Insulation without Nicking and Damaging the Electric Wire!

The Wire Stripper and Wire Cutter
My absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires.
This handy tool has multiple uses:
The wire gauges are shown on the side of the tool so you know which slot to use for stripping insulation.
The end of the tool can be used to grip and bend wire which is handy for attaching wire onto the screw terminals of switches and outlets..

The wire stripper will work on both solid and stranded wire. This tool is Very Handy and Easy to Use.

electrical parts

Residential Electrical Parts and Accessories

Light Switches

120volt Outlets

Circuit Breakers

Electrician Tools

Voltage Testers


Bathroom 20amp Circuit

David in New Jersey asks:
In a new full bath is a 20amp circuit enough for the GFCI Outlet, the Exhaust fan, Vanity Light and Two Down Lights?
The lighting will all be LED so not much of a load there.

Dave’s Reply:

Single bathroom Circuit

Yes. The typical circuit for a single bathroom is 20amps, and may be used for the devices you plan to install.

More about Bathroom

Why Is My Bathroom Light Fixture Not Working?
How to Fix a Bathroom Light Fixture and a Bath Exhaust Fan that has Stopped Working. The Most Common Problems with Bathroom Light Fixtures and How You Can Fix Them.

Why Receptacle Outlets are Not Getting Full Power
Why Do I Only Have 70 Volts on a 120 Volt Receptacle? How to Troubleshoot and Repair Outlet Problems, The Most Common Problem with Electric Outlets and How to Repair Them.

Installing a GFCI Outlet Without a Ground Wire Video
How Can I Install a GFCI outlet on a 2wire circuit that does not have a ground wire? How to Install a GFCI Outlet Where There is No Ground Wire.

Kitchen Exhaust Fan Wiring
How are the wires connected to a kitchen exhaust fan? How to wire a kitchen exhaust fan that is installed above the kitchen range or cook top stove.

Wiring a GFCI Switch and Light
How do I add a switch to a light that is on a GFCI circuit? Ground Fault Protection for a Light Fixture.

Upgrading Knob and Tube Electrical Wiring
How can I replace knob and tube wiring? The Most Common Methods for Upgrading Knob and Tube Electrical Wiring, How to Upgrade Electrical Wiring for Light Fixtures and Switches.

Bathroom Light Switch Wiring Diagrams
Where do all the wires connect to a light switch? Electrical Wiring for a Bathroom Light Switch with Wiring Diagrams.

Causes Of Electrical Shock in Homes
What causes a shock when touching a light switch or water facet, how can this be fixed? How Incorrect Electrical Wiring Can Produce Electric Shocks.

bathroom - 1487