Electrician Training Electrical Certification wiring recessed light fixtures Electrical Wiring Electrical Troubleshooting and Electrical Repairs wire outdoor light fixture Home Electrical Wiring Diagrams
wiring home generator and transfer switch wiring a 220 volt range cord outlet Wiring for GFCI Outlets Wiring Outlets and a Switched Outlet Wiring and Installing Ceiling Fans and Remote Controls wire dimmer switch wiring diagrams for switches wiring a dryer cord and 220 outlet circuit breaker panel
Electrical Wire and Cable

Helping People with Electrical Wiring for Over 30 Years!

Why Light Circuit Stops Working

How to Repair a Light Circuit that Stopped Working

Home Light Circuit Stops Working
Electrical Question: Light circuit quit working 12 years after house was built (homeowner built, passed state inspections, no problems). Four 2-pole switches, no outlets, grounded. No light works, breaker does not trip (swapped breaker, no change). 115 VAC across switch terminals, on OR off, all four switches. In sockets, 48 VAC when switch is on, 0.2 VAC when switch is off. Doesn’t make sense to me. What should I look for now?

This electrical question came from: Harry, a Homeowner from Carr, Colorado.
See more about Home Wiring for Colorado

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

How to Repair a Light Circuit that Stopped Working

Cause of Light Circuit to Quit Working


Lighting for the Home
recessed lighting

Planning and Installing Home Lighting

Home lighting articles covering recessed lighting, under cabinet lighting, lighting terminology and more.

You identified your project to be about Troubleshooting, so you might find this information useful:

Repair Electrical Wiring

Troubleshooting and Repairing Electrical Wiring

Licensed Electrician Reveals the Secrets of Successful Electrical Troubleshooting Methods used to solve the majority of the home electrical problems and wiring failures encountered.

« Oven Circuit and Dryer Circuit Requirements Installing Heavy Light Fixtures »

» 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.
  electrical wiring  

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.

Not the answer you're looking for?
Browse other questions in the following categories:

Lights Stop Working

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


If you are asking a Quick Question please make sure it is about This TOPIC:
“Why Light Circuit Stops Working”

Comments Posted here are Open for Quality Discussion and Participation.

By submitting you agree to our Site Terms