Last week, at random the smoke detector did just this. It would emit a short beep and say "low battery detected" in a creepy computerized female voice. It was especially creepy when in happened in the middle of the night.
Mr. Twingle took the detector down and replaced the battery, THREE times, and it continued to beep and talk to us telling us the battery was low. It is currently sitting on my bedroom dresser, without a battery.
Three days later, the alarm on the main floor started chirping (beeping). Once again, Mr. Twingle took the detector down to replace the battery only to find that this particular smoke detector is hard wired without a battery back up. So why is it chirping at random? We've left this one connected and I am currently suffering through the incessant chirping.
I've googled and checked the manufacturer website. We have tried vacuuming it, blowing it with compressed air, resetting the breaker and yet it still chirps. The worst part, is there is no rhyme or reason to when it starts. It'll chip every 20 seconds for 6 hours and then it won't chirp again for two days.
I'm fairly certain at this point that both the upper floor and main floor detectors need to be replaced; but seriously, what are the odds of two going at the same time; when both say they are good until 2017 and they are different models? Needless to say I'm going crazy with the constant beeping.
I think I hear beeps in my dreams at night now and that can't be normal!
I just realized this post doesn't really have a point, other than giving me a place to rant...so thanks for reading (if you got this far).