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Posted by Meat Plow on September 12, 2007, 5:20 pm
On Wed, 12 Sep 2007 19:03:12 +0000, mark.gustavson wrote:
>> mark.gustav...@gmail.com wrote:
>> > Last night at approx 1:30 am my wife and I awoke to a firecracker
>> > sound coming from the attic over our bedroom. It was very loud. I
>> > climbed up into the attic and saw sparks popping off of the main AC
>> > duct, looked like it was coming from an area that had been sealed by
>> > aluminum tape. We turned off the main breaker in the house and the
>> > sparks continued.
>>
>> > It appears to be a chemical reaction of some sort, and not
>> > electrically created. If someone has ever heard of this or can give
>> > me some advice whether to call a Duct installer, or electrician it
>> > would be greatly appreciated.
>>
>> > Thanks!
>>
>> St Elmo's Fire.http://en.wikipedia.org/wiki/St._Elmo%27s_fire
>
> fixed! main for the AC is outside next to the package unit. I
> followed the wires going into the unit and one of the lines was
> rubbing against the frame of the unit and subsequently energizing the
> duct work. After insulating with a piece of pvc and plenty of
> electrical tape, all is well. Thanks for everyones help!
Does the main breaker not de-energize the A/C supply? You said you shut
the main down and the sparks continued.
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