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Causes of Lost Power After Changing a Light Fixture

Common Problems with Light Fixture Wiring and How to Repair Them: Inspecting the Light Fixture Wiring, Reinstalling the Light Fixture, Resetting a Tripped Circuit Breaker.


How to Repair Lost Power to a Light Circuit

Electrical Questions about Light Circuit Problems:

Question from Brian, a Homeowner from Rochester, New York:

Question from Carol, in Jacksonville, Florida:

Dave’s Reply:
Thanks for your electrical wiring questions Brian and Carol.
Both of these problems of lost power when working on light fixture electrical wiring can be repaired by reviewing the following possible causes.

Common Problems with Light Fixture Wiring and How to Repair Them

There is a good possibility that the problem is either a tripped circuit breaker, or a problem in the light fixture wiring. If the light is not working there may be a loose wire that did not make connection, or was left out of a wire connection all together.

Guide to Resetting a Circuit Breaker

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MORE ABOUT THIS TOPIC: Lost Power to Outlets and Lights

FAQs Frequently Asked Questions and Comments

2 Responses to “Causes of Lost Power After Changing a Light Fixture”
  1. Rick says:

    I recently changed the light in my bathroom. All working well for several weeks. Suddenly last night the lights go out, no pops or fuses blowing or tripping or anything dramatic. I checked the connections in both the fixture and the switch and both are fine but still no light.

    Checked voltage in light and was 0V.

    Nothing has changed it simply switched off and won’t come back on. The hall light is on the same switch and is working fine.

    Any ideas?

    Cheers,

    Rick

    • Dave Rongey says:

      Hi Rick,
      The voltage should be checked at the primary side of the light switch, and any associated wire splices of both the line and the neutral.
      Be Safe,
      Dave

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