This started in my home about a month ago. We have smoke alarms outside each bedroom door and in hall way ant the smoke alarm outside mine started chirping intermittently. It made me insane and at 3 am I put in a new battery. Beeping started again about an hour later. Since we have 5 smoke alamrs in our upstairs - maybe a bit of over kill , I felt okay about just removing the battery for the night.
Well, now the one in basement doing the same thing. Its like some kid of Chinese water torture.
Thinking it might not be the battery and a clogged sensor- so took the vacuum to tit and that seems to have stopped it. A smoke alarm detects a change in the density of air so something that hinders its sensor wil trigger a problem. I read also using a can of compressed air ( the type to clean computer) also works the same way.
So - if your smoke alarm beeping or chirping after changin the batteries- most likely it is clogged sensor - try getting rid of built up dust before you replace.
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Posted by Linda- Home and Garden Ideas as General Home and Garden at 9:12 AM EDT