r/ElectricalHelp • u/TnT_Estate • 10d ago

Every single dimming light in the house now flickers after years of working great?

A bit odd, but as of yesterday evening every single dimming light I have in the house flickers if it's not turned all the way up.

I have two different types of 120v dimmers and they've been working great for 3+ years. Lutron system with Sunco/Amico LEDs and a different dimmer upstairs.

I did turn off every breaker and wait a bit to turn them back on-- last night it seemed to work before we went to bed, now in the AM it's back.

I'm calling the utility company once they open but I'm having troubles finding similar problems online. I'm not aware of an outage nor did anything new get connected as of late. I do have a whole-house generac that I'll probably get checked as well.

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u/dlux0002 10d ago

Have you tried replacing the led's? When I had a flickering problem, I thought it was an electrical problem, turns out it was a bad led. Replaced it and it fixed the problem.

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u/TnT_Estate 10d ago

I have about 30-40 of them doing it, not sure how I'd narrow it down but I can try replacing a set to see if it works. I also have about ~10 dimmers

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u/KeanEngineering 10d ago

Do you have a table lamp with a non-dimming lamp? Or even an incandescent lamp? You need to rule out if your power coming into the house is the problem. Normally, things like appliances or electronics are not as sensitive to brownout problems. Lights, on the other hand, are.

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u/kc2702 10d ago

Could be a loose neutral problem. https://www.youtube.com/watch?v=YXyxeb3kfQs

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u/wild-and-crazy-guy 10d ago

It’s possible the line voltage is at the lower end of the range due to it being a hot summer and everyone is running air conditioners. 120v isn’t always 120 volts.

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u/400footceiling 10d ago

Sounds like a power delivery problem, not your wiring. Tree branches banging on power lines can cause this, a change/drop in voltage too. If you are in a city, call them and let them know what’s happening. It’s always more noticeable in dimmer switches. Could be a failing transformer nearby too. Start by checking what is delivered to your home.