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Why Older Homes Have Dimming Lights

Why do the Lights Go Dim in the House? House Lights Dim When Power Is Used, The Power Requirements of the Home.

Dim Lights when Something is Used

Electrical Question: Why do the Lights Go Dim in the House?


This Home Electrical Question came from: Lauren, a Homeowner from Utah.

Additional Comments: Very helpful and informative.

Dave’s Reply:
Thanks for your Electrical Wiring Question Lauren.

Lights will Dim in the House

electric panel upgrade

The Power Requirements of the Home Electrical Service Panel

Why House Light Dim When Power Is Used: Evaluating The Requirements of the Electrical Service
Older homes may still have the original electrical service panel which may become  overloaded to the point of causing dim lights when electric appliances are being used.

  1. If the house has not had an upgraded electrical service then you may want to have an electrical contractor make an evaluation of your circuit requirements.
  2. The electrician should  provide an estimate to upgrade the electrical service.
  3. The electrician should also discuss installing new electrical wiring for dedicated circuits to the appropriate devices, such as the microwave oven.

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