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Discussion Starter #1
Going off 8 hours after going to bed - alarm going off while still sleeping around 7 am in morning - what would alarm be sensitive to when house is quiet and everyone sleeping?
 

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Electrical Contractor
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3,368 Posts
How old is the unit?

Anything from dust build-up to a rogue spider can make `em do this.

You may need to clean it up (VACUUM it), or replace it if it's more than 7 years old ...
 

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Licensed Electrician
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4,352 Posts
Are they combination smoke/CO detectors?

Are they "chirping" or is it actually going off?
 
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