They can save your life, or go off when nothing's wrong. Here's what to do if your smoke alarm is giving you fits.

Is your fire alarm beeping randomly? You’re probably annoyed and wondering why it's making noise in the middle of the night when you're just trying to sleep. Don’t worry, you’re not alone.

after technicians confirmed they had fixed a fault causing a lighthouse's fog alarm to sound non-stop for about a week. The high-pitched electronic beep noise had been heard coming from Longships ...