Testing and Maintenance

Test each smoke detector monthly by pushing the button.

  • Replace 9 volt and AA batteries in smoke detectors twice a year.  (Remember: change your clocks, change your batteries.)
  • If the alarm “chirps,” warning that the battery is low, replace the battery right away.
  • All smoke detectors have a recommended service life of 10 years. Replace your smoke detectors at this time or sooner if they are not functioning properly. Look for the manufactured date on the back or inside the detector.
  • Vacuum or dust out cobwebs that have accumulated in smoke detectors at least once per year.