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Why Home Lighting May Stop Working


By Dave Rongey - Summary:

How to Identify Light Circuit Problems – Often the problem is found in a ceiling light fixture junction box where heat from the light fixture travels up into the electrical wiring and causes the wiring to become brittle and connections may be affected and eventually burn apart.

Causes of Home Lighting to Stop Working

Electrical Question: The lights on the top level of my home went out suddenly. The outlets on that level are still working. Outlets on other levels are not working though. I have checked the circuit beaker several times with no results.

This electrical wiring question came from: Latashia, a Homeowner from Baltimore, Maryland.
See more about Home Wiring for Maryland

Dave’s Reply:
Thanks for your electrical wiring question Latashia.

How to Identify Light Circuit Problems

Latashia, what you have described may be due to a connection being lost for one of the wires of the light and outlet circuit. Often the problem is found in a ceiling light fixture junction box where heat from the light fixture travels up into the electrical wiring and causes the wiring to become brittle and connections may be affected and eventually burn apart.

Outlet Junction Box Wiring

The same may be true where the wiring in a wall outlet may be damaged due to the use of portable heaters or other electrical devices which use an abundance of electrical power which can result in the circuit wiring to become hot and cause deterioration to the point of a burnt connection resulting in a lost connection. All the devices on the affected circuit should be identified. The circuit should be turned OFF then an inspection of all the circuit devices should be performed.

Electrical Circuit Repairs

Once the problem has been identified then the necessary electrical repairs should be made where a new device or outlet may be required and the removal of damaged portions of wiring. Repairs to a bad wire splice and installing a new wire connector may be be required as necessary. This work is best provided by a licensed electrical contractor.

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