Why does smoke alarm still "chirp" even after new battery?
Question:One of my smoke alarms started to "chirp"; we placed a new battery in it, but it still chirped; we tried a second battery, but it still chirped. Any idea what's wrong?
Answers:
If the batteries are fine, its a bad smoke detector. Also make sure your RED wire is attached to the other smoke detectors. This is the signal wire to the others that trips all the other smokes. If all are wired correctly and battery is good, its a bad smoke detector.
look for a red reset button
On some smoke detectors if the battery is in backwards it will still chirp. Try turning the battery around.
This usually indicts there is a fault with the smoke and it should be replaced. I deal with this all the time
I was going to say try another battery but you already tried this but when you did was it from the same pack if so then you may just have some old battery's and want to try another pack if not then you should replace the detector
Sometimes smoke alarms will chirp if they are dirty, if you take your vacuum and just clean all around it, it can help.
I've come across this problem a few times and, ruling out possession by a poltergeist, and the advent of AI taking over the world, I still haven't figured it out. I've always replaced it with a new one and tossed the beepin' thing (or bleepin' I should say). Good thing they're fairly cheap. When you think of what it does, it's a VERY good price. Here are some things to check;
Make sure the unit isn't dusty. The dust interferes with the operation of the sensor. Blow it out with an air compressor if you can.
Is the unit interconnected with other units in your house? You can easily tell if the orange wire is used. If it is, disconnect it and see if one of the other units beep. Replace or repair that one.
How old is your sensor? They usually last on average 10 yrs. There should be a date stamped on the inside. If not, it's and older one and should be replaced.
And lastly, what kind of battery are you replacing the old one with? Alkaline? It should be a quality 9v alkaline battery like Duracell or Eveready. Don't use those bargain no-names. They don't last.
Good luck!
I've had this happen to smoke detectors that are quite old. I don't know why it happens but the only fix I know is to replace it. Apparently these gizmos are not immortal.
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