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How I Repair a Bathroom Light Fixture that Shorted Out

How can I fix a light fixture that shorted out and will not come on? Guide for Repairing a Bathroom Light Fixture Problem.

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Bathroom Light Fixture Electrical Repair

Electrical Question: How can I fix a light fixture that shorted out and will not come on?

One of the lights in my bathroom shorted out and smoked for a second and now none of the other lights in the bathroom will come on.

This electrical question came from Joyce who is a homeowner.

Dave’s Reply:
Thanks for your electrical question Joyce.

How to Repair a Bathroom Light Fixture

Application: Repair Light Fixture Wiring.
Skill Level: Beginner to Intermediate – Best performed by a Certified Electrician or Licensed Electrical Contractor.
Tools Required: Basic Hand Tools and Safe Ladder.
Estimated Time: Depends on personal experience, the light fixture and access to the light fixture.
Precaution: Identify the light fixture circuit, turn it OFF and Tag it with a Note before working with the wiring.
Notice: Replacement parts for the light fixture should be compatible with the type of lamps that have been installed.

Guide for Repairing a Bathroom Light Fixture Problem

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FAQs Frequently Asked Questions and Comments

6 Responses to “How I Repair a Bathroom Light Fixture that Shorted Out”
  1. Dave Rongey says:

    Hi Patrick,
    The following process will help identify this light fixture problem:
    The circuit should be tested at the switch box to make sure there is power from the breaker.
    Double check the wiring connections of the dimmer switch.
    Check the wiring connections to the light fixture, and the circuit power to the light fixture.
    As with any electrical project, this is best performed by a qualified electrician.
    Be Safe,

  2. Patrick says:

    I short out my kitchen light fixture, the black wire was live and touched the recess light housing and produced a spark. Since then I cannot fix it.
    Of course this spark trigger the breaker which tripped off, which I put back on. I changed the dimmer switch, checked all wires but cannot found anything.

  3. Dave Rongey says:

    Hi Mo,
    If there is a short in the cable or wiring then the circuit would trip off right away.
    Because there is a delay before it trips off there is the possibility of an overloaded circuit. The circuit could be tested for amperage load for overload conditions.
    Aside from that, the circuit and the connections will need to be evaluated for any faults.
    Be Safe,

  4. mo says:

    Bathroom lights controlled by one switch black wire of which connected to a GFCI receptacle ), vent fan and light controlled by another switch and walk-in closet light(by another switch. all light gone.

    1)Replaced the receptacle no help. later pulled and moved the wires of bathroom lights a while
    it worked for a few days and died out again.
    2)Turned off the breaker, I disassembled the bathroom lights fixture and make sure no wire shorting with a ohm meter before turning on the breaker and vent fan with light (it worked for more than twenty minutes.)
    3)Turned the breaker off and wrapped the wires with electrical tape before re-assembled the bathroom lights fixture.(double check with ohm meter to make sure no short)
    4)It worked only for a minute and shorted out again. Is it possible somewhere of cable
    inside the wall shorted? the chance is rare and difficult to fix it.
    Please give me some hint.

  5. Dave Rongey says:

    Hi Lilly,
    First – clear any exposed wiring and make sure the wall switch for the light is OFF.
    Next – check the electrical panel for a tripped 15 or 20 amp circuit breaker, which will look like the switch handle is in the mid or less position. Turn the breaker to the full OFF position, then back into the ON position.
    If a circuit breaker is not tripped OFF then look for a GFI outlet in the bathroom, and push the RESET button.
    This should get you going. Use a flash light or set up a temporary light for finishing the fixture wiring.
    Be Careful!

  6. Lily says:

    Please help, I shorted out the electrical/light box in my bathroom. I didn’t see that someone had turned the light switch to the on position , so when I put the new light fixture up to the light box it caused a spark and now none of the lights in the bathroom work. How do I fix this?