Posted by (PeteCresswell) on April 19, 2007, 5:15 pm
Had a new panel put in some months ago and it's finally dawned on me that the
thing hums fairly loudly.
My sense is that some component in there normally vibrates at 60 cycles and it's
somehow touching the body of the box turning it into a sounding board.
Before I open this thing up, though, I'd like to hear some thoughts...
Is there any one component that is probably the source of the vibration?
--
PeteCresswell
Posted by Martin Riddle on April 19, 2007, 6:25 pm
> Had a new panel put in some months ago and it's finally dawned on me that
> the
> thing hums fairly loudly.
> My sense is that some component in there normally vibrates at 60 cycles
> and it's
> somehow touching the body of the box turning it into a sounding board.
> Before I open this thing up, though, I'd like to hear some thoughts...
> Is there any one component that is probably the source of the vibration?
> --
> PeteCresswell
Sounds like a bad breaker. Most are Magnetic and thermal these days. Flip em
off one by one.
Cheers
Posted by clare at snyder.on.ca on April 19, 2007, 8:10 pm
wrote:
>Had a new panel put in some months ago and it's finally dawned on me that the
>thing hums fairly loudly.
>My sense is that some component in there normally vibrates at 60 cycles and it's
>somehow touching the body of the box turning it into a sounding board.
>Before I open this thing up, though, I'd like to hear some thoughts...
>Is there any one component that is probably the source of the vibration?
Do you have a doorbell transformer or equivalent fastened to the
panel? (low voltage control transformer, etc)
--
Posted via a free Usenet account from http://www.teranews.com
Posted by (PeteCresswell) on April 22, 2007, 9:41 am
Per clare at snyder.on.ca:
>Do you have a doorbell transformer or equivalent fastened to the
>panel? (low voltage control transformer, etc)
Bingo!
Doorbell transformer.
Partially obscured by the front cover's overhang... attached to one of those
pop-out holes.
Thanks!
--
PeteCresswell
Posted by clare at snyder.on.ca on April 22, 2007, 3:18 pm
wrote:
>Per clare at snyder.on.ca:
>>Do you have a doorbell transformer or equivalent fastened to the
>>panel? (low voltage control transformer, etc)
>Bingo!
>Doorbell transformer.
>Partially obscured by the front cover's overhang... attached to one of those
>pop-out holes.
>Thanks!
Much more common than buzzing breakers. Ask me how I know (not)!!
--
Posted via a free Usenet account from http://www.teranews.com
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> the
> thing hums fairly loudly.
> My sense is that some component in there normally vibrates at 60 cycles
> and it's
> somehow touching the body of the box turning it into a sounding board.
> Before I open this thing up, though, I'd like to hear some thoughts...
> Is there any one component that is probably the source of the vibration?
> --
> PeteCresswell