What's wrong with my fire alarm?
July 28, 2008 9:13 AM Subscribe
My fire alarm started going off randomly last night, several times, after doing so inter-mittently over the last year. What is causing this, and what can I do?
posted by RustyBrooks to home & garden (13 answers total)
So here's the symptoms... we moved in about 1.5 years ago, and the fire alarms went off randomly like once every few months. Usually it would just do the alarm cycle 3 times, like beepbeepbeep... beepbeepbeep... beepbeepbeep... and stop (this is the same thing it does when you press the test button...)
I've replaced all the batteries (although none of them had the check battery light on, or were making that obnoxious chirping sound)
Then last night it did this at 2am, 4am, 4:50am and about 5:30am. Because nothing was on fire and I wanted some sleep, I removed *all* of the fire alarms (unplugged them from the ceiling, removed the batteries).
These are "normal" fire alarms, same as in every house I've ever lived in. They plug into a small outlet in the ceiling, they're "networked" together so that if one goes off, they all do. What might cause this? What can I do to fix it? Would one "bad" one convince the network of them that an alarm was going off? Bad wiring? I'm assuming there's no central control panel for them in the house (I've never seen one) but maybe there is some where?