First, turn off the AC power at the circuit breaker or fuse box.
Next, remove the battery from Smoke Alarms with battery back-up.
Finally, press and hold the test button for 5-10 seconds to discharge the branch circuit.
How do you turn off a First Alert smoke alarm?
If the detector is mounted to the ceiling, place the ladder beneath the detector instead. Press and hold the “Test/Silence” button on the side of the detector for 10 seconds. Release the button to enter “Silence mode” which quits the alarm from sounding.
Why does my First Alert fire alarm keep going off?
It is normal for smoke alarms to go off and sound briefly (up to 5-10 seconds) when you install a new battery or when they are powered up. If the alarm continues to go off and no smoke is present, the cause may be one of the following: There may be insufficient battery power, try new batteries.
How do I get my smoke detector to stop beeping?
How to Stop Smoke Detector Beeping or Chirping –
How do I turn off smoke detector?
Hardwired (AC) Models
Turn off the breaker controlling the alarm circuit or disconnect the smoke detector from the circuit. Open the cover and remove the battery. Press and hold the reset button for 15 to 20 seconds. If the alarm sounds, hold the button until it stops.