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Electrical Wire and Cable

Changed a Light Bulb Now Fixture Does Not Work

What caused a light fixtures to stop working after I changed the light bulb? Homes with old electrical wiring could experience problems that will require some electrical trouble shooting to locate the problem.

Why Light Fixtures Stop Working
Electrical Question:What caused a light fixture to stop working after I changed the light bulb?

This is an older home with older wiring and the fixture has seen better days.
What do you think is going on?


This electrical question came from: Steve, a Homeowner from Shellbrook Saskatchewan, Canada.

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

Light Fixture Problem and Electrical Wiring

Application: Electrical Troubleshooting Light Fixture Wiring.
Skill Level: Beginner to Intermediate – Best performed by a Licensed Electrician..
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.

Old Light Fixtures May Have Deteriorating Electrical Wiring

Homes with old electrical wiring could experience problems that will require some electrical trouble shooting to locate the problem. The following will help to identify the problem with this light fixture.

The Following will assist you with Electrical Problems in a Light Fixture

Electrical Wiring

Lighting For The Home

Light Switch Wiring

How to Install Kitchen Electrical Wiring
Kitchen Electrical Wiring

» You Can Avoid Costly Mistakes! «

Here's How to Do It:
Wire It Right with the help of my Illustrated Wiring Book

Great for any Home Wiring Project.

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Complete Guide to Home Electrical Wiring

Perfect for Homeowners, Students,
Handyman, Handywomen, and Electricians
Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
How to Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
....and much more.

Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.

Electrical Tips to Help You Wire it Right

The Safest Way to Test Electrical Devices and Identify Electric Wires!

The Non-Contact Electrical Tester
This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester that I use to easily Detect Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.

The Quickest Way to Check for Faulty Electrical Wiring!

The Plug-In Outlet Tester
This is the first tool I grab to troubleshoot a problem with outlet circuit wiring. This popular tester is also used by most inspectors to test for power and check the polarity of circuit wiring.
It detects probable improper wiring conditions in standard 110-125 VAC outlets Provides 6 probable wiring conditions that are quick and easy to read for ultimate efficiency Lights indicate if wiring is correct and indicator light chart is included Tests standard 3-wire outlets UL Listed Light indicates if wiring is incorrect Very handy and easy to use.

Strip Off Wire Insulation without Nicking and Damaging the Electric Wire!

The Wire Stripper and Wire Cutter
My absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires.
This handy tool has multiple uses:
The wire gauges are shown on the side of the tool so you know which slot to use for stripping insulation.
The end of the tool can be used to grip and bend wire which is handy for attaching wire onto the screw terminals of switches and outlets..

The wire stripper will work on both solid and stranded wire. This tool is Very Handy and Easy to Use.

More articles about Light Fixtures, Troubleshooting and Home Electrical Wiring:
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FAQs Frequently Asked Questions and Comments

5 Responses to “Changed a Light Bulb Now Fixture Does Not Work”
  1. Michael N says:

    In my property, I changed light bulbs that are connected on the lower and upper switch of the inside stairs. I’m not sure if both switches are the problem? Can someone help me please?

  2. William Sanchez says:

    My bath vanity lights will not work. I changed the switch and checked the tabs in the light sockets. I tested the lamp on a different circuit and the lights worked. I installed the lamp in the vanity light fixture and they didn’t work.

    • Dave Rongey says:

      Hi William,
      The circuit wiring in the bathroom should be tested to make sure the voltage is present, and to make sure the neutral wire is connected and working properly. If either wire of the circuit is not working then each section of the circuit should be tested and evaluated individually. It is possible that a wire splice has failed due to a loose or burnt connection. If this is found then appropriate repairs will be required.
      Thanks for sharing William. We hope this will help to repair the problem with your vanity circuit.

  3. josh says:

    i recently was trying to screw in a bulb in my ceiling fan and the bulb popped. Now i replaced the bulb and it works ok, but the dimmer switch on the remote for it does not. i tried replacing battery so i know its not the remote…. PLEASE HELP!!!!!!!

    • Dave Rongey says:

      The dimmer switch was on while you changed the light bulb when the light bulb popped, so this damaged the dimmer switch and so the dimmer switch will need to be replaced.
      This a good example of why you should never replace light bulbs while the switch is on, especially dimmer switches because they are very sensitive and can be easily damage.

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