COMMUNITY FORUM

BV002520

02:47PM | 11/09/13
The same thing just happened at our house. It was the CO monitor. Both my husband and I swore the ceiling was chirping after we removed the smoke detector, changed the battery, etc. We had to move the co detector to another room to discover that it was actually that and not the smoke alarm. We were on the verge of replacing all the smoke detectors in the house. I, like previous posters, urge you to check your CO monitor.

johnmicera

09:07AM | 11/10/13
Member Since: 11/10/13
1 lifetime posts
all of my first alert smoke alarms are chirping --they take turns--they are hard wired-- i have replaced the batteries--how do i fix this-- seems to happen in the middle of the night when everyone is sleeping

BV002640

05:56AM | 11/25/13
Was irritated that some replies kept mentioning carbon monoxide detector. I could swear I knew exactly which smoke detector was affected. But just went back up the the master bedroom to check and my carbon dioxide detector was showing low battery/error. Right before I pulled it out of the wall, it beeped it's excruciating beep!

I think the sound of the beep is sooooo loud, it bounces off walls and makes you believe it's coming from another source. My house is quiet now and I can up from the basement!!

BV002660

06:35AM | 11/27/13
I did the following to resolve this problem:

1) Take down all the smoke detectors. IF you have a CO monitor also hard wired, take it down as well.

2) For each detector, open the battery compartment so that there is no power to the detector. Hold down the test button until all beeping stops to drain the capacitor. The detectors usually have a capacitor that holds some charge even after disconnected from power and battery.

3) Close the battery compartment so that the detector is running on battery alone. If it starts to chirp, repeat with a new battery. If it chirps with a new, good battery, try blowing dust out of the detector and repeating. If it still chirps, get a new detector.

4) Once all detectors are working on battery power, connect them to power one by one. If the detector starts to chirp, then try a different detector in that location. If both chirp you probably have a wiring problem or connector issue at that location. If one chirps but the other does not, you probably have a wiring or connector problem on the chirping detector.

I hope this helps.

Most of this came from First Alert customer support. They were very helpful.

BV002677

06:31PM | 11/29/13
It was the freaking CO monitor for me as well!!
After replacing the battery the beep stops! Thanks for everyone here.

BV002726

11:25PM | 12/05/13
warm it up it worked for me

BV002746

01:14AM | 12/09/13
I swear I was going insane, after removing the battery & smoke detector, and STILL hearing chirping "coming out of the wall" or the wires... but the solution was the same as many mentioned above. My wife had unplugged a CO2 detector that had been lying on the floor (under its electrical socket) for months, draining it's batteries, until it's low battery chirp started intermittently going off every minute... sounding EXACTLY like our smoke detector. Like others mentioned, my hears couldn't localize the frequency, so I thought I heard it coming out of the empty space where the smoke detector was hard-wired. CHECK YOUR CO2 DETECTOR in the room!

BV002842

11:27AM | 12/22/13
We had the same noises - it drove us crazy. We replaced all the batteries in the smoke detectors - carbon monoxide and even the thermostat. It still kept up with that damn noise. We heard noises coming from the attic. My son went into the attic and found another smoke detector in the attic. Changed it and end of noise. Unbelievable!!

BV002842

11:31AM | 12/22/13
We had the same noises - it drove us crazy. We replaced all the batteries in the smoke detectors - carbon monoxide and even the thermostat. It still kept up with that damn noise. We heard noises coming from the attic. My son went into the attic and found another smoke detector in the attic. Changed it and end of noise. Unbelievable!!
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