If your smoke detector is constantly beeping every 30 seconds or so then this more than likely means that it is time to change your batteries in the smoke detector, that is if you have a battery operated smoke detector beeping. There is a good rule of thumb that you should always be checking your smoke detectors to ensure that they are working properly, and you should replace the batteries in your smoke alarm twice a year to be on the safe side. If you do this not only will this ensure the safety of your home and whoever is in it but it will also stop smoke detectors from beeping at 2am in the morning, which is when they always seem to start beeping and going off.
What Kind Of Batteries Do Smoke Detectors Use?
This depends on when the smoke detector and where the smoke detector was made. In my experience most of the new models of smoke detectors us 9 volt batteries, while some are hard-wired, and some are a combination of both. If there are any new smoke alarms that are out there that are different than this I would like to be made aware of this as it is not my nature to give out false information.
Smoke Detector Keeps Beeping After Battery Replacement
Some smoke detectors will keep beeping even after you replace the battery for a couple of reasons. The number one reason a smoke detector wont stop beeping after you replace the batteries is that the batteries are bad. Batteries do go bad if they are stored for long periods of time or now in there package. I have many years experience working in an apartment complex and many of my technicians have had the same problem with a smoke detector chirping after installing a fresh new 9volt battery.
But there are some smoke detectors that need to be reset. This is what I do every time I replace a smoke detector battery and being that I have worked maintenance at a complex with 500+ units I do this almost every single day so I know what the hell I am talking about. Take the smoke detector down and remove the battery. Push the button to test the smoke alarm without the battery in it, guess what, you will here a beep! This is because the smoke detector still has a little bit of a charge from the worn out battery.
Push the test button again – you will here a small chirp or nothing at all. Now the smoke detector is reset, insert the new battery and test. This works for me 99% if the time, as I said before I service smoke detectors for a living. Now there have been a few times when I ran across that smoke detector that won’t stop beeping after battery replacement. If you tried to reset the smoke detector like I said above and it is still beeping, just trash it and get a new one. Smoke detectors are recommended by many professionals to be replaced every 10 years, some less some more, but this is when you know for sure that it is time to replace your smoke detector, you do not want to take any chances when it comes to the safety of your home and your family.
Hard-Wired Smoke Detector Keeps Beeping
If you have a smoke detector that is not battery operated and just hard wired and it keeps beeping, then you may not have any power to the smoke detector. Ensure that the breaker to the smoke detector is on and working, you can check this with a volt meter, or most smoke detectors will have a power indication light on them also.
If you have any questions about a beeping smoke detector that I did not cover or have something to add then feel free to leave a comment.
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The above suggestions of Dave the Handyman make sense and might solve the classic type of beep sounds but the above numerous examples of folks who use a smoke detector (hard-wired or not) combined with my own experience have led me to the conclusion the “smoke detector” product seems to be poorly designed, at best. If so, then the manufacturers of smoke detector products should seriously review and thoroughly understand the above problematic events of their faulty products and then design, develop and market more robust products for all of us. It is totally unacceptable for this VERY annoying problem to continue without being fixed. Have the various manufacturers evaluated the impact of the quality of air (composition, airflow, negative/positive charges), fouling-up of the sensor due to dust/dirt, insects’ deposition, etc. etc.? If Yes, then what is their fix and respective recommendations???? Someone could write a PhD thesis on this issue. I am so sick and tired of this VERY annoying issue, that I plan to install brand new smoke detectors in our home and hope and pay that I will have some PEACE at nights for even a little while!!!! Amin!!!!
There are 7 smoke detectors in this house, and changing the batteries is an event to be planned for and dreaded. Both my cattledogs are rescues with some severe fear/panic issues. The chirp of a smoke alarm with a low battery anywhere in the house caused them to hide, shaking and scared. Thanks to your comments above, all batteries were replaced fairly quickly, without the usual post-ladder-storage beeping. I also identified two units that need to be replaced. I appreciate your detailed instructions more than you can imagine.
thank you
we have a chirping smoke detector. we changed all the detector’s batteries; still it chirps. we changed the back up battery; still it chirps. the house is 4 yrs old. we tried changing the detector itself, but it was screwed and glued to the sheet rock, so could not remove it. they are not on a dedicated line. what next?
ps, the detectors are also hard wired, only one chirps unless it is disconnected then they all chirp.
Just changed out to new batteries, each smoke defector beeped two more times in the following 5 to 10 minutes after installation as they reset themselves. Mine are hard wired & require 9volt batteries. I always seem to forget this 2 more beeps is a confirmation of sorts.
Thanks to Dave for his expertise….It was driving me mad after installing new batteries in my 6 detectors and still have them chirp….so, I took the unit(s) off the wall..unplugged the electrical connection..removed the batteries…pushed the test button until they lost their chirping….put the battery back in…tested it…plugged the electrical connection and remounted…problem solved!!
Why did my smoke detector start beeping when the batteries were testing still in the green good range on my battery charge tester? Shouldn’t they only start beeping once the batteries are completely dead? We took the batteries out of two of them to sleep through the night and thankfully the beeping stopped. We’re not sure if we are hearing something in the attic. Could that be affecting the wiring of the smoke alarms?
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