AC guy left about noon yesterday. Complete new systems upstairs and down. AC was working great when I came home from work. All good.

1:30 this morning, the smoke alarm starts going off. It goes off for maybe 30 seconds, and then shuts itself off. Three years in this house and the smoke alarm has never gone off before.

I spent 20 minutes walking around inside and outside of the house. Crawled in the attic, etc. Never smelled smoke, fumes, or anything out of the ordinary. AC still working fine.

I don't believe in coincidences. Does anyone have any theories?

Also: I'm calling the guy back out here today to check everyone again.

Thanks!

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Posted by Baers Foot

Louisiana Ragin' Cajuns

Member since Dec 2011

3535 posts

Posted on 5/19/20 at 8:28 am to No Colors

Could be extra dust dispersed by all of the work, especially if he messed with duct work. I had trouble with one of my hard-wired smoke detectors being near my A/C return. Had to routinely hit it with compressed air.

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Posted by TU Rob

Birmingham

Member since Nov 2008

12724 posts

Posted on 5/19/20 at 8:45 am to Baers Foot

quote:
Could be extra dust dispersed by all of the work, especially if he messed with duct work. I had trouble with one of my hard-wired smoke detectors being near my A/C return. Had to routinely hit it with compressed air.

That's what I'm guessing as well. Mine went off several years ago the night after I did demo work on a bathroom that was only separated from the hardwired detector by a short hallway. I had shut myself in the bathroom and taped off the door while I was ripping out tile, drywall, and a tub, but then I had to haul it all out in a wheelbarrow and I'm sure some dust kicked up. The only difference is this detector was hardwired into the home alarm system, so I got a full siren blast around dinner time.

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Posted by TheBoo

South to Louisiana

Member since Aug 2012

4477 posts

Posted on 5/19/20 at 8:51 am to No Colors

quote:
1:30 this morning, the smoke alarm starts going off.

How high did you float out of bed when that happened

Check the humidity level that your new system is maintaining. depending on the due point and your temperature settings it may be humidity buildup on the sensor.

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Posted by modes

Member since May 2017

257 posts

Posted on 5/19/20 at 8:54 am to No Colors

Mine did the same thing last year when it was replaced. I think it was the dust because it was just a short alarm. Never happened again

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