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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.

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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