Circuit breaker buzzing

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  #1  
Old 05-24-19, 07:43 PM
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Circuit breaker buzzing

Hi all,
I have multiple dimmer switches in my house and they all have a small buzzing noise. You would have to put your ear next to the switch to hear it. That is probably not an issue but I noticed that one of them also causes the circuit breaker to buzz. When the light is not on there is no buzzing from either switch or circuit breaker but when I turn on the light I hear the same small buzzing noise when I put my ear next to the circuit breaker. Anything to be concerned about?
 
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Old 05-24-19, 08:14 PM
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That is not an uncommon issue. Since the breakers are thermal/magnetic they sometimes hum. Usually it's with a large load like an A/C but some dimmers can also cause that to happen.
 
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Old 05-25-19, 11:57 AM
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Thank you PJmax. Anything I should be concerned about or let it hum? The humming does not bother us, an electrical fire would though
 
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Old 05-25-19, 12:32 PM
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The breaker buzz is not harmful. A problem would be if you saw flickering lights.
 
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Old 05-26-19, 06:02 AM
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The other thing that you may want to do is read up on dimmer switches and how they work and the reasons for the tabs on the edges of the switch that many times people (non-electricians) break off too many tabs to make more room in the box thus reducing the capacity to carry their loads. Also why they get warm.
 
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Old 06-07-19, 10:23 PM
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Thanks all. Some tabs are indeed removed but the capacity should be okay. There are 6 LEDs at 11 watts each. Anyways, I'm writing again because the lights are now flickering though, and buzzing from circuit breaker seems to be louder, a recent development in the last few days. It's not consistent but concerning. Is it time to have an electrician take a look?
 
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Old 06-08-19, 04:26 AM
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Does the circuit breaker feel warm to the touch?
 
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Old 06-09-19, 07:11 PM
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Hmm, nope not warm to the touch but I don't leave it on when the lights are blinking. When they're not blinking I will leave them on for a while and the breaker isn't warm.
 
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Old 06-10-19, 05:19 AM
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LED dimmer technology is not perfected yet. Unless you get a perfect compatibility match between the LED lamps and the dimmer manufacturers there is going to be some buzz, flicker, hum, interference in other devices, etc.
 
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