Wiring a Switch for a Bath Exhaust Fan
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How to Wire Bathroom Exhaust Fans and Switches: Adding a bath exhaust fan and timer switch to a bathroom. © By: Dave Rongey |
Bath Exhaust Fan Wiring Diagrams
[ad#block]Electrical Question: I am trying to add a bath exhaust fan and timer switch to my bathroom.
- Currently, the bathroom has a vanity light that is powered at the fixture.
- There are two wires going to the switch (white & black), however I believe that the white is a hot neutral as both wires are connected to the switch terminals.
- At the fixture, there is a black hot (connected to a black going to the switch), a white neutral, and a black (assumed hot connected to a white going to the switch).
- How can I power the exhaust fan by tapping into the power source at the light fixture and wire a timer switch to operate the fan separate from the light?
Many thanks in advance for any assistance you are able to offer!
This electrical question came from: Craig, a Homeowner from Indianapolis, IN.
Additional Comments: Thank you for providing this resource!
Dave’s Reply:
Thanks for your electrical wiring question Craig.
Preparations for Wiring a Bathroom Exhaust Fan and Switches
- Application: Wiring Switches for a Bathroom Exhaust Fan and Light.
- Skill Level: Intermediate to Advanced, best installed by a licensed electrical contractor.
- Tools Required: Basic Electricians Pouch Hand Tools and a Voltage Tester.
- Estimated Time: Depends on personal level experience, ability to work with tools and the access to the wiring for the wall switch for the exhaust fan and if a larger switch box will be required.
- Precaution: The combo bathroom exhaust fan circuit should be identified, turned OFF and Tagged with a Note before working with the wiring and installing the fan speed switch.
- Notice: Modifying existing wiring or installing additional bathroom electrical wiring should be done according to local and national electrical codes with a permit and be inspected.
How to Wire Bathroom Exhaust Fans and Switches
- The links below will help you with your bathroom exhaust fan project.
- Wiring a spring wound timer switch with two wires is the same as wiring a regular single light switch.
- Installing Your Bath Exhaust Fan
- Answers to all of your questions about installing a bath exhaust fan and your bathroom exhaust fan replacement project.
- Bath Exhaust Fan
- Bathroom Electrical Wiring
- Light Switch Wiring
- Wiring Diagrams
- Electrical Wire for the Home
Electrical Wire for the Home
Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.
The following may also be helpful for you:
Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.
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