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Why Is My Bathroom Light Fixture Not Working?

Jim in Livermore California asks: How Can I Fix a Bathroom Light and Exhaust Fan that Stopped Working? The Most Common Problems with Bathroom Light Fixtures and How You Can Fix Them.


Fix a Bathroom Light Fixture
Electrical Question: How can I fix a bathroom light and exhaust fan that stopped working?

Bathroom Light Fixture Problem #1

This electrical wiring question came from Ingrid, a Homeowner from Virginia Beach, Virginia.

Bathroom Light Fixture Problem #2
My bathroom light fixture or light switch not working.

This electrical wiring question came from Beki in Henderson, Nevada.

Bathroom Lights and Outlets Problem #3

My downstairs bathroom lights and outlets in the neighboring bedroom stopped working. The GFCI outlet in the bathroom still works but must be on a different circuit.

This electrical wiring question came from Jim in Livermore, California.

Bathroom and Bedroom Lights Not Working :

This electrical wiring question came from Chandy, a Handyman in Chandler, Arizona.

Dave’s Reply:
Thank you for your electrical wiring questions.

How to Repair a Bathroom Light Problem

Application: Repair a Bathroom Light Circuit and Exhaust Fan Problem.
Skill Level: Intermediate to Advanced – Best performed by a Certified Electrician or Licensed Electrical Contractor.
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 circuit, turn it OFF and then Tag it with a Note before performing any wiring or inspections or repairs.

The Most Common Problems with Bathroom Light Fixtures and How to Fix Them

NOTE: Electrical problems like this are best discovered when using a voltage tester.

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» You Can Avoid Costly Mistakes! «

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Wire It Right with the help of my Illustrated Wiring Book

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Complete Guide to Home Electrical Wiring

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Includes:
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.



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How to Repair a GFI Outlet Circuit Help for Bathroom Light Circuit Problems

FAQs Frequently Asked Questions and Comments

40 Responses to “Why Is My Bathroom Light Fixture Not Working?”
  1. Leeanna Jackson says:

    I changed the bathroom vent and then the bathroom lights stopped working but the rest of the lights are working. What is the problem?

  2. Dave Rongey says:

    Hi Jola,
    If the light fixture flashed and buzzed then I suspect there is a problem with a light socket or the electrical wiring of the light fixture. Loose or faulty wiring connections may be the cause of this problem, however some electrical troubleshooting will be necessary.
    IMPORTANT: The circuit of the light fixture should be turned off before inspections or repairs are performed.
    An inspection of the light fixture electrical wiring will be necessary to reveal the problem so specific repairs can be made.
    I Hope this helps,
    Dave

  3. Jola says:

    The light on the wall above the mirror flashed and buzzed few times and then went off. I bought new bulbs and replaced them but the light is still not working. There is a triple switch and everything else is working accept the light fixture on the wall.

  4. Dave Rongey says:

    Hi Cassie,
    Troubleshooting a Bathroom Light Fixture Problem
    There is a good possibility that the lights and fans are not on the GFCI circuit of the bathrooms. The 15 and 20 amp circuit breakers should be double checked to see if one is tripped, but may appear to be in the ON position. Switching a breaker into the OFF position and then back ON will ensure a reset.
    I hope this helps,
    Dave

  5. Cassie says:

    This morning the lights and fans in all 3 bathrooms don’t work. They worked last night. No circuit breakers blown and I tested and reset the GFCI but still no lights. The electrical outlets in all 3 bathrooms work, just not the lights.

  6. Dave Rongey says:

    Hi Louise,
    The power source to the hallway light is being controlled by the bathroom light switch, therefore the electrical wiring for the hallway light has to be changed. The power source to the hallway light should be from a non-switched power source. This change will correct the problem that you are experiencing with your bathroom and hallway light.
    I hope this helps,
    Dave

  7. louise says:

    I’m having a problem when l use my top bathroom and hallway light. When I switch on my hallway light my bathroom light has to be on at the same time and will not go off until you turn the hallway off.

  8. Nick B says:

    Its a really old townhouse, so, no GFCI outlet..

  9. Dave Rongey says:

    Hi Nick,
    The first thing I would do is check the bathroom GFCI outlet to see if it needs to be reset.If the GFCI outlet is OK then the circuit for the bathroom lights should be identified and turned off, then the light fixture should be removed so the wiring can be inspected to reveal the cause of the loss of power, which may be a burnt wiring splice or a faulty connection which normally supplies power to the exhaust fan.
    Dave

  10. Nick B says:

    Last night i turned on the light switch in the bathroom, there was a huge blue spark/flash from where the lights above the mirror are, and now the power in the whole bathroom doesn’t work, i checked the breaker box, nothing was tripped, i turned off and back on all the breaker switches anyway, but no change. I originally thought the bulb just burnt out until my wife told me the next morning that the bathroom fan wouldn’t turn on either, and i don’t think the bathroom is even on a separate breaker from the bedroom (its an ensuite bathroom of the master bedroom) and i still have power in the bedroom as well as the rest of the house, im at a loss… Any suggestions?

  11. Dave Rongey says:

    Hi Eddie,
    If the bathroom time switch or occupancy sensor has been existing for a while and operating fine but has now begun to malfunction then it is possible that the time switch is now faulty and needs to be replaced.
    If this is a new time switch or occupancy sensor that has just been installed then the wiring connections should be compared with the installation instructions which came with the switch. The electrical wiring of the bathroom circuit should be verified and identified using a voltage tester to make sure the circuit wiring meets the requirements for the time switch to operate properly.
    Dave

  12. Eddie says:

    The switch for my bathroom fan has decided not to work properly. Has 4 preset times on it (10/20/30/60 mins), and upon pressing a button to turn it on it just clicks over, and over….HELP!

  13. Dave Rongey says:

    Hi Don,
    I suspect there is a problem with the circuit wiring, and the problem may be found at a connection or splice up inside one of the junction boxes of a light fixture, very possibly in the bathroom. The light fixtures that are not working would be a good place to begin checking with the circuit turned off. The problem with the circuit is best identified and repaired by a qualified electrician.
    Dave

  14. Don says:

    My dining room light fixture worked fine then it stopped working. I replaced the bulbs but that still didn’t work. I was puzzled so I checked the power by my power stick which says there was no power. I even tried replacing the light but that did not work either so I gave up. Then my daughter used the hair drier and blew the breaker. I reset the circuit breaker and now my bathroom is dead and there are no lights or plugs working. What is going on? I replaced the breaker but nothing. Please help.

  15. Dave Rongey says:

    Hi Al,
    I would start by testing for power at the switch, then up at the light and fan. If the light is separate from the fan and there is no power to the switch then pull the fixture and check the splice connections. Ceiling fixtures can produce heat which may break down wire insulation and create bad connections.
    Dave

  16. Hi Dave says:

    Hi Dave,

    Last night my bathroom light and fan wouldn’t go on. It’s a single switch that operates the light fixture and ceiling fan. They won’t go on. The electrical outlet works as I plugged my electric shaver in and it does work. I checked the circuit breakers and the test button and it seems to be fine. Any suggestions?

    Thanks Dave
    AL

  17. Dave Rongey says:

    Thanks very much Brian,
    The GFI in the garage normally does not feed power into the bathrooms, but still I am glad you have found the solution.
    Dave

  18. Brian says:

    First off, thank you so much for the quick reply! After reading a few items on-line about the GFI’s, late last night I reset the GFI outlet in the garage, and that did the trick. I was surprised that the upstairs fans were tied into that GFI outlet. Aside from that, again, thank you for quick response! I have now bookmarked your site.

  19. Dave Rongey says:

    Hi Brian,
    You could double check the circuit breakers, sometimes they appear to be ON but may be tripped, however if that is so then the cause needs to be identified. Ceiling fixtures with junction boxes may develop lose or burnt wire connections due to hot light bulbs, this would require careful examination of the fixture and wiring, then appropriate repairs of the affected wiring.
    Dave

  20. Brian says:

    Went upstairs and bathroom fans in 2 bathrooms not working. Lights not working in one of those bathrooms. Circuit box does not show anything tripped. None of the GFI’s show tripped, but I reset anyway. No results. Any ideas, and I am not electrical inclined.

  21. admin says:

    Jason, it’s either another GFI, a bad GFI, or a splice that is faulty, but it is most likely a GFI.
    Dave

  22. Jason says:

    When my wife turned on a hairdryer the power went out in that room and one other in the house (both are bathrooms). I checked all breakers and non were kicked, i checked all breakers for continuity and voltage all tested fine, checked all gfi outlets in the house non were tripped but reset them anyway, looked at all outlets, fans, and light fixtures for loose wires and all were fine. Still no power in either room. What else could it be?

  23. admin says:

    When a circuit breaker trips off it is usually an indication that there is a direct short or a fault in the circuit wiring. Electrical faults are discovered using a series of inspections and tests. Please see the page about Troubleshooting Electrical Wiring which may be helpful.

  24. krose17 says:

    Hi,
    My husband and i are having a really difficult time trying to get the bathroom light and fan working. We had to replace the old receptacle with a gfi, however the light and fan weren’t working at all anyway. So the light on the gfi is on but when we turn the light switch on (there are two switches)it flashes on and then trips the breaker box. Also, there are two lights in the bathroom, one over the sink, one over the toilet and also a exhaust fan. I am so exhausted because we have to get this done before the inspector comes back and i cannot afford an electrician. I also looked at the main power box, it shows the bathroom runs off a 15 amp breaker. I am just telling you what i know, can you please help!

  25. KENNETH GWYNNE says:

    Hi
    My bathroom light stopped working last week and all the hall light went out as well but I managed to sort that out be tightening the block connector within the bathroom switch witch had 3 black wires going to it. I replaced the bathroom switch but still doesn’t work. I then borrowed a testing machine and there seems to be no power going to the switch. Can you help

  26. Jeff Cooke says:

    Ok, Well I am having a problem. I have a bathroom light and a bedroom ceiling fan/light not working. They are on the same circuit. The breaker is on and I have power to the switch in the bathroom. I also have power to the light fixture but the light still does not come on. I have disconnected the bathroom light and attached another light and nothing. I also changed the light switch with no results. I am getting 125.1 at the switch and at the light fixture. I am not sure what to do next. Can you help?

    Jeff

  27. Dave Rongey says:

    Allan, have you checked to see if your neutral wire is good? It is very possible that the connection for the neutral has been lost at a junction within the circuit.
    Dave

  28. Allan Jarvis says:

    Hi Dave. I am having the same problem like birdie, but I did replace the light switch to no avail. I checked all three switches for current and the other two both have power. The light has none. I replaced the switch (3-wire)120V wit the same style that I removed. 2 wires on the side and one in the back.Any ideas?Perhaps I bought a faulty light switch. Any suggestions will help. Thanks, Allan

  29. Dave Rongey says:

    Birdie, It sounds like the switch for the light is bad and needs to be replaced.

  30. Birdie says:

    I am having a problem with the light in my bathroom. The light switch has three separate switches: one for the exhaust fan, one for the light that is part of the exhaust fan, and one for a light above the sink. The light that is part of the exhaust fan is not working. I have replaced the bulb (actually twice just to make sure) and it is still not working. However, the exhaust fan and light above the sink are working. i also checked the fuse box downstairs, and that was fine. I’m stumped…what do you think the problem could be?