Step 1: Change The Batteries. Most of the time, changing the batteries should stop any annoying chirping. You can watch the step-by-step video we made showing you how to replace the batteries in your smoke detectors here.
If that doesn’t work, the smoke detector has probably gone bad. Until you can replace it, this is the best way to get the chirping to stop.
Step 2: Remove the battery and disconnect the power. Then press and hold the test button until you don’t hear any sounds. Now all you need is to install a new smoke detector.
The National Fire Protection Association recommends every smoke detector be replaced after 10 years. On the back of the detector, you’ll find the date it was manufactured. Replace it 10 years after that date.
Step 3: Replace old or dead smoke detectors. If you feel comfortable working around electricity, this is something you can do yourself. Or contact an electrician you trust for help.
You can watch the video here if you want a step-by-step guide to replacing a smoke detector yourself.
