I had the same issue. My detector beeped loudly once a minute; and another one beeped once a minute, so beeps were heard every 30 seconds from 2 detectors. I vacuumed the units, turned off circuit breaker, disconnected wire unit from detectors, replaced batteries, held test button with battery out and then with battery in. None of this helped. All detectors had green solid light. I tried to solve all day and got a headache of course.
Finally (and this is noted by others too), I checked my plug-in (stand alone, not connected/wired to house or to smoke detectors) carbon monoxide detector (Kiddie brand, bought about 3 years ago; smoke detectors came with new house, now about 8 years old). I had just quickly plugged the carbon detector units into outlets and forgot about them. The carbon monoxide detector was going off! It had a red light flashing. My second carbon monoxide detector (Kiddie, same as this one) was NOT alarming and had steady green light! I unplugged the flashing carbon detector and INSTANTLY all smoke detectors were quiet Yikes! There was no carbon monoxide, I'm not sure why it went off.
So I'd suggest if you have wired/electrical smoke detectors to try unplugging various other things; sensor lights, alarms, small appliances, anything recently plugged in, etc. It might not make sense but it's an easy quick thing to try before trying complicated or expensive solutions, and to avoid headaches! Good luck!
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Thanks to Kelly R.
My smoke detectors ( w/o batteries ) we both chirping.
Kelly nailed it. It was the Carbon Monoxide Detector, which has 3 batteries wasn't going off, but I replaced the batteries and everything silenced.
The Carbon Detector was the Kiddie Brand also.
If you slide the Unit up, you'll find 3 AA Batteries.
I replaced and reset all of them.
Thank you Kelly!
Thank you so much. I checked my plug- in smoke detector and remembered I had unplugged it yesterday and forgot to put the switch back on. Thank goodness for google
Thank you! Unplugged my Carbon Monoxide detector, problem solved. However, mine was still showed a green light.
Try turning your heat up, newer homes, the ones that have hard wired smoke detectors with newer furnaces for some reason seem to know when the temperature drops below 70 degrees in a large portion of your home. I chased this rabbit down a hole for a couple of months.
We have a loft and two bedrooms with an electric heat pump over our living room and the rest of the main floor which has a gas furnace. When the upstairs system was turned below 70 at night, after my daughter moved out...the alarms began to go off at night beginning when the temp up there hit 68 degrees or so...it would be all weird hours of the night. After some months of not sleeping and many hours of research, I sat up there one night and listened to the heat kick on and off and finally off with its programming and it then ret colder and then it began. I just turned the heat up to match the heat down stairs and slowly it warmed up and the beeps got slower until they stopped, wallah, problem solved.
Try it, it may just be as simple as that. I wish I had a done it a lot earlier, we spent 4 years in Texas listening to our alarm in Texas going off.
Thank you big help. I had. Space heater plugged in near smoke detector, once unplugged the chirping stopped.
Mine had the same issue. I disconnected all six hardwired alarms that are only 6 months old in the house and took them outside. Still chirping at the box at the top of the stairs.with your advice I found a small battery operated Co detector my wife had on a low shelf there.
Thanks i was going crazy the alarm was blaring for about 20 minutes woke up scared thinking we were on fire later realized that theres nothing wrong
THANK YOU FOR THIS POST.. I WAS GOING NUTS TRYING TO SLEEP WITH THST DAMN BEEPING... GOT UP AND UNPLUGGED THE CO DETECTOR AND THE BEEPING STOPPED!!! IT'S A MIRACLE
A carbon monoxide detector has a shelf life of five to ten years and will beep constantly until unit is disconnected and replaced. Depending on the manufacturer some devices may beep and a green light is flashing others just beep
here what's the chief fire department told us, 1st dust it, 2nd put new batteries if they are old, 3rd if nothing works unhook the alarm from the ceiling and wait for a moment 1 mm and put hook it back to the ceiling. that's it the 3rd one worked with me.
OMG thank heavens for finding your post - I have been up and down ladders all morning, replacing the battery in one of my mains connected smoke alarms and it has been driving me crazy, the beeping still wouldn't stop. After reading your post i went straight to the boiler cupboard (which is close to the location of the smoke alarm) and sure enough it was the carbon monoxide alarm that had been bleeping the whole time!
I had the exact same experience. Unplugged the carbon monoxide detector from the outlet and all smoke beeping stopped. Carbon unit was about 7 years old.
Thanks for the advice.
OMG........THANK YOU. I'VE HAD WEEKS OF CHIRPING. I UNPLUGGED THE CARBON M...........DETECTOR AND WILL REPLACE.
PEACE AT LAST.
Thank you so very much! That's exactly what made my smoke detectors to stop chirping after I had changed all batteries. My dogs are also very appreciative!!
Thank you sooooooo much! It was my carbon monoxide detector all along!
same here
Thank you, Kelly. After much consternation, it was the plug-in carbon monoxide detector that was bad. Thank you!
It is bizarre, but my smoke detector was beeping with a new battery, but after reading the comment here, I unplugged and removed the batteries from my carbon monoxide detector and the beeping stopped. It is like they were echoing each other.
Thank you for your help, it was the carbon monoxide detector.
Thanks,I had same problem for seven days. Replaced batteries in all of my alarms. Next replaced the chirping alarm but the chirping went on and on.
Also take the batteries out of the ones that you replace I accidently left the battery in the one in the kitchen trash late at night, even though it is no longer hard wired, it still chirps and communicates to the others and makes them chirp. It drove me crazy. I thought there was one in a closet or cupboard above the stove or refrigerator and kept searching when I heard the chirping in the kitchen. Then it made the basement one and hallway one chirp. I realized when I took the trash out and it chirped. removed battery. problem solved.
OMG thank you Kelly for a good nights sleep! We tried everything and the beeping would not stop. Had I not read your post I would have never know to unplug other electrical items.
this was so helpful. I bought a new smoke detector and it still chirped so I read this and removed my carbon dioxide detector from outlet below smoke detector and it stopped chirping and everyone is sane!!!
Thanks for figuring this out. I had bought 3 Kidde carbon monoxide and smoke detectors and installed them on each floor. The one on the 3rd floor keep beeping every minute or so. I kept switching off the power, uninstalling and reinstalling. I switched the one from the basement to the 3rd floor, same problem. After reading this post, I took the carbon monoxide plug-in detector out and took out the battery. I then reinstalled the detector and.....problem solved! Thanks so much...glad I came across this post. It's a weird fix - but I'm grateful it worked!
Thank you for sharing this, it was the only thing that helped! I, too, spent the entire day trying to find out why my smoke detector was chirping every 30 seconds or so. My detectors were old (about 20 years), so the first thing I did was replace them. Once done, the chirping did not stop. I spent the entire day, resetting, blowing air, rechecking wire connection (all suggestions to no avail). I finally called an electrician to make an appointment because I had to fix this, as the chirping was taking a toll on one of my dogs. As I was about to give up and go to bed, I happened upon this comment. Turns out it was my plug-in carbon monoxide detector! I cancelled the electrician! So again, thanks
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