We have a 9120 First alert smoke alarm, which is hard wired, new unit. The power went off and since that time the "chirping" has not stopped. Please let me know what to do to stop the noise. Thanks, lgillispie@cybermesa.com

Asked by Steve Gillispie on 12/10/2014 1  Answer

ManualsOnline posted an answer 9 years, 11 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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