The Silence Feature can temporarily quiet an unwanted alarm for up to 15 minutes. To use this feature, press the “Push to Test/Silence” button on the cover. If the unit will not silence and no heavy smoke is present, or if it stays in silence mode continuously, it should be replaced immediately.
Disconnect all power sources (take out the battery, if it is a plug in alarm remove it from the outlet, and if it is hardwired alarm disconnect it from any wiring). Hold the test/silence button for 20 seconds.
Use thumb to pull deactivation tab outward until tab snaps into place. This will discharge the powercell and deactivate the unit.
Remove the alarm from your ceiling or wall. Open the cover and take out the battery. Press and hold the test button for 15-30 seconds. This will fully reset the smoke alarm and drain any charge left inside. Insert the new battery and close the battery compartment.
Replace the battery.
Most often, a chirping First Alert Alarm means that it's low on battery. If you hear a single chirp every 30-60 seconds, you most likely have a low battery and simply need to change them.
If your smoke alarm is emitting a single high-pitched chirp every 30 seconds or so, it's most likely a sign that the battery is running low and needs to be replaced. Stopping the problem is a simple matter of changing it out.
Take the individual chirping unit down: After shutting off the circuit breaker, take the individual unit down, remove the battery backup (if it has one), then hold the test button down for 15 seconds. This should reset your alarm and stop the chirping.
On First Alert carbon monoxide detectors, check to see if the battery light is yellow or green. If the alarm is chirping and the light is yellow, it means the battery is low. The way to get a carbon monoxide alarm to stop chirping is to replace the battery.
Insert your override key (the one with the square top) and while turning the key, take a flathead screwdriver and insert it in the crack of the door and slowly pry it open. Another method is to lay your First Alert safe on the right-hand side and using the override key to open the door.
The smoke detector battery is low
If your detectors are battery-operated, changing the detector's batteries is the first thing to consider doing when your red light flashes. Most detectors will emit a shrill chirp or beep and a flashing light when they need a battery replacement.
Reset your Carbon Monoxide Detector
Carbon monoxide detectors require a battery or wired power to reset them. Make sure a battery is connected, or the power is on before starting the reset process. First, look for a button called 'silence' or 'reset'. Hold this button down for 10 or more seconds.
Disarm the alarm system
The process for doing this differs for each system, but one of the following is usually recommended: Enter the passcode and disarm. Arm the system, and then disarm it, immediately. Press the status button on the keypad.
Select Notifications or Apps & Notifications. Tap Wireless Emergency Alerts or Advanced and then Emergency Alerts. Toggle on and off Amber Alerts, Severe alerts and Extreme alerts.
Bypassing a zone allows you to arm your system with certain protected areas intentionally unarmed or to access a protected area when the system is armed. To bypass a zone, enter your [security code] + [6] + [2-digit zone number]. To unbypass a zone, enter your [security code] + [1].
Clear Residual Charge to Stop the Chirp
Remove the alarm from your ceiling or wall. Open the cover and take out the battery. Press and hold the test button for 15-30 seconds. This will fully reset the smoke alarm and drain any charge left inside.
The Silence Feature can temporarily quiet an unwanted alarm for up to 15 minutes. To use this feature, press the “Push to Test/Silence” button on the cover. If the unit will not silence and no heavy smoke is present, or if it stays in silence mode continuously, it should be replaced immediately.
Beeps Once Every 30 Seconds or Minute
Most often, a single smoke alarm beeping every 30 seconds or one-minute signals a low battery. It could also mean you put the batteries in the wrong direction or that the battery drawer is still partly open.
Low Battery or End-of-Life: This type of chirp indicates it is time to replace your smoke alarm's batteries or the smoke alarm itself.
To get a smoke alarm to stop chirping, press its hush/silencing button. Then, figure out what caused the false alarm, such as humidity, and fix the problem, like by moving it away from a bathroom.
You can silence the End of Life warning “chirp” by pressing the Test/Silence button. The horn will chirp, acknowledging that the End of Life Silence Feature has been activated. After approximately 2 days, the End of Life “chirp” will resume.
Pressing the “Test/Silence” button on the front of the unit should stop it from beeping or chirping. If this doesn't work, grasp the device and turn it counterclockwise. It should detach from the base so you can open the battery compartment in the back. Remove and replace the battery to see if it caused the issue.
Unit will not operate without battery power. The Smoke Alarm cannot work until you activate the battery power pack.