One of our hard wired smoke detectors is beeping, what to do?

Most likely you will need to replace the smoke detector. I've experienced the same problem and that was the only solution. My house is only 6 years old, and I have already replaced three of the detectors. Life expectancy isn't always as long as one would like.

If it has a short you may need to replace it.

I was told to unplug it check your fuse box /circuit breaker then plug back in

hope this helps

All smoke detectors have a battery back up in case of power failure more likely the battery needs replaced if this isn't the case then replace the detector.

I had a problem like this and I changed the battery and it still beeped. I found out that with my smoke detectors after you change the battery, you need to press and hold the reset button. I found this out by doing an internet search on the brand of detector I had, and they had a manual online for it.

Sounds like you need to change the back up battery. I know, I had the same problem, I thought that because they were hard wired they didn't have batteries....wrong !!...they do

Also , check for spiders. At this time of year spiders come into the house and, it seems that the smoke alarm is a perfect hidy-hole for them...and then they trigger the bleeping