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Why does my smoke detector chirp when its the kind thats hard-wired and not batteries?

April 26, 2017batteries chirp Detector garden hard-wired Home maintenance repairs smoke

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Why does my smoke detector chirp when its the kind thats hard-wired and not batteries?

2 Answers

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When in Doubt CHANGE THE SMOKE DETECTOR or at least add another one here in Maryland and I am sure most other places they are under $10.00 and fire departments will give you one for free! your life and that of others is not worth waiting for the right answer. I am only preaching cause there was a fire in a relative’s house and a cat woke up my daughter to a house on fire and full of smoke!

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I don’t think your detector is bad. Some units will have a small filter/screen that can get dusty. Try cleaning this off (canned air works good). The dirt can make for a false reading causing the unit to chirp.