Bathroom Light Not Working Then Check This

By Dave Rongey - Summary:

Electrical Troubleshooting for a Bathroom Light Problem: I have a light switch that has no power to turn on the ceiling light in the bathroom.

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No Power to Switch and Bathroom Light

Electrical Question: I have a light switch that has no power to turn on the ceiling light in the bathroom.

  • I  also have a n exhaust fan for a vent.
  • What should I check?

This home electrical wiring question came from: Robert, from Stratford, Connecticut.

Dave’s Reply:
Thanks for your electrical troubleshooting question Robert.

How to Fix a Bathroom Light Problem

bathroom wiring

Application: Lost Power to a Bathroom Light Fixture and Switch.
Skill Level: Intermediate to Advanced – Best performed by a licensed electrician.
Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester.
Estimated Time: Depends on personal level experience, ability to work with hand tools and electrical troubleshooting skills.
Precaution: Identify the bathroom light circuit, turn it OFF and then Tag it with a Note before performing any inspections, wiring modifications, or repairs.
Note: Electrical troubleshooting is best performed by a qualified electrical contractor.

Electrical Troubleshooting for a Bathroom Light Problem

If your bathroom light is not working and there is no power to the light switch then check theses items:

  • Tripped Circuit Breaker
    • Look for a tripped circuit breaker, and if you find one then reset the circuit breaker.
    • Keep in mind that circuit breakers will trip off because of a problem with the wiring or an overloaded circuit.
  • Tripped GFCI Outlet
    • Check the bathroom GFCI outlet to see if it is tripped OFF, and if it is then press the RESET button.
    • This is one of the most common caused of lost power in the bathroom.
  • Faulty Electrical Splice or Connection
    • If there is a problem with the electrical wiring or a bad splice in the light fixture then electrical repairs will need to be performed to correct the problem.
    • Bad splices are often found in light fixture where there are large watt lamps that produce a lot of heat.

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FAQs Frequently Asked Questions and Comments

2 Responses to “Bathroom Light Not Working Then Check This”
  1. Dinah Bordum says:

    The lights and exhaust fan in the master bath will not turn on. The outlets work, half the master bedroom is on the same circuit, and everything is working there too. I went through all the circuit breakers. We haven’t done any electrical work recently.

    • Dave Rongey says:

      Hi Dinah, The power source in the bathroom switch box should be tested for normal power and inspected for a possible faulty wiring connection to a switch or a faulty wire splice of ether the power or the neutral wire.
      Thanks for sharing your bathroom light question with us,


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