As the battery in a smoke alarm becomes weak, the smoke alarm will "chirp" about once a minute to alert you that the battery needs to be replaced. Note: Only the alarm with a low battery will chirp.
How do you get a smoke alarm to stop chirping?
Resetting the Alarm
- Turn off the power to the smoke alarm at the circuit breaker.
- Remove the smoke alarm from the mounting bracket and disconnect the power.
- Remove the battery.
- Press and hold the test button for at least 15 seconds. ...
- Reconnect the power and reinstall the battery.
Why a smoke detector is beeping for no reason?
Smoke alarms are designed to start beeping when the batteries are running low. This can cause your smoke alarm to make a chirping noise at times when the smoke has not been detected. In most cases, you can stop the beeping noise by replacing the batteries and resetting the smoke alarm.