Smoke Detectors Beep When the Temperature Drops?

October 28, 2009

Smoke DetectorI don't know the name of my smoke detectors, but they begin to beep when the temperature is cooler in the house. The batteries are good. Why would this happen and can you help me? Thanks.


By Jan from Chesterfield, VA


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November 1, 20090 found this helpful
Best Answer

I had the same thing happen. It was dust! Try vacuuming them before you give up and get new ones. It solved our problem. However, if they are older than 10 years, buy new ones! Grandma Jan

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3 More Questions

Ask a QuestionHere are the questions asked by community members. Read on to see the answers provided by the ThriftyFun community or ask a new question.

February 21, 2018

Why does my wired in smoke detector begin to chirp when the temperature drops below 63 degrees? There are no batteries. It is hard wired.


February 22, 20181 found this helpful
Best Answer

It turns out that although my smoke detector is hardwired, it also has a battery back up. An electrician installed it in in 2015.


I will change the battery and am hoping the end of chirps will be the result.

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February 27, 2012

Why do my smoke detectors beep when the thermostat is low, but stop when I turn the heat up?

By Shirley


March 16, 20121 found this helpful

It is possible that the cold messes with the batteries and makes it think that the batteries are low? That's the only thing I can think of right off, lol

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October 19, 20151 found this helpful

That's interesting.I agree with you.

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September 20, 20200 found this helpful

My hard wired detectors with batteries beep 3X when the temperature in the house is low. It does it once and stops.

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January 23, 2013

The only time our smoke detectors go off is when we turn our home heat down to 60 degrees and leave for vacation. This has happened to us 2 years in a row and the batteries are replaced yearly. Any solutions?

By tas

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