What does it mean when my smoke detector chirps occasionally?
It’s a bird. It’s a plane. That noise that’s eluding you and hitting that last nerve? It’s trying to save your life! A smoke detector will chirp once every minute if the battery is low and needs to be replaced. So you remove the battery and quiet peace resumes in your home. Now—replace the battery—usually a nine-volt battery! If your smoke detector chirps more frequently or at odd intervals, it probably needs to be replaced. Smoke detectors should be tested monthly and batteries changed every six months. When it’s time to change your clocks—spring forward; fall backward—it’s great time to change the batteries in your smoke detectors.