Troubleshooting a Circuit Breaker?

We have a dedicated panel for our water well. It has a 15 amp breaker which controls a single light fixture which we use for illumination and, with a heat lamp, for warmth to prevent freezing in bad weather. This is a procedure we have used for 10 years since the panel was installed. I turned on the light at the last freeze and when I returned to turn it off, it was not working. I tested the light bulb which was still good and then I replaced the fixture, but that did not correct the problem. At that point I tested the breaker with my multimeter. It read 124 volts until I turned on the light, then it dropped to 11 volts and the bulb wouldn't glow. I replaced the breaker with a new one and have the same drop in voltage with the very minor load of a single 60W bulb. The well pump and it's double 40A breaker are functioning just fine. What can be the problem?


Add your voice! Click below to answer. ThriftyFun is powered by your wisdom!

Silver Post Medal for All Time! 255 Posts
March 11, 20170 found this helpful

Possibly the wiring between the fixture and the breaker?

Reply Was this helpful? Yes

Add your voice! Click below to answer. ThriftyFun is powered by your wisdom!

In This Page
Home and Garden Repair Home ElectricalNovember 23, 2016
Thanksgiving Ideas!
Halloween Ideas!
Ask a Question
Share a Post
Better LivingBudget & FinanceBusiness and LegalComputersConsumer AdviceCoronavirusCraftsEducationEntertainmentFood and RecipesHealth & BeautyHolidays and PartiesHome and GardenMake Your OwnOrganizingParentingPetsPhotosTravel and RecreationWeddings
Published by ThriftyFun.
Desktop Page | View Mobile
Disclaimer | Privacy Policy | Contact Us
Generated 2022-10-23 09:27:10 in 748 msecs. ⛅️️
© 1997-2022 by Cumuli, Inc. All Rights Reserved.