Use thumb to pull deactivation tab outward until tab snaps into place. This will discharge the powercell and deactivate the unit.
Reset the Smoke Detector: Sometimes, a smoke detector just needs a good reset to stop the chirping. You can do this by turning off the power at the circuit breaker, removing the detector from the mounting bracket and disconnecting the power supply. Then, press and hold the test button for about 15 seconds.
Press the hush/silencing button. It will silence the entire interconnected system. The button may also say “test.” It should silence all the alarms immediately unless there's still smoke and debris.
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.
The basic instruction for temporarily silencing your alarm system is to press the silence or hush button, which will deactivate the triggers for a few minutes. Most smoke detectors have this button named 'test,' which you can press and hold for a few seconds to get the job done.
IMPORTANT: Deactivation of the alarm is permanent. Once the alarm has been deactivated, it cannot be reactivated or mounted back onto the mounting plate and will no longer detect smoke or carbon monoxide.
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.
To get your smoke alarm to stop chirping if you've already changed the battery, first try draining any residual charge by holding the test button down for 15 seconds. If this doesn't solve the problem, clean the unit. A blast of compressed air will often remove the dust particles that are causing the beeps.
You can silence the low battery warning “chirp” by pressing the Test/Silence button on the alarm cover.
Removing an AC hard-wired or interconnected alarm
Disconnect the AC power harness by squeezing the locking arms on the sides of the quick connector while pulling the connector away from the bottom of the alarm.
Manually pressing and holding the “silence” button on the smoke detector/fire alarm will cause it to stop sounding but not permanently turn it off. On older models, you may need to unscrew the alarm from the wall or ceiling and hold down a button on the back.
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.
Use thumb to pull deactivation tab outward until tab snaps into place. This will discharge the powercell and deactivate the unit.
Stopping a smoke detector from beeping or chirping involves checking its batteries, cleaning it, or addressing environmental factors that may trigger the sound. If the problem persists, the unit may need replacing.
There are a few possible causes for your smoke alarm to keep chirping even with a new battery. It might be time to buy a new detector. Check the date of manufacture printed on the back of your alarm to confirm it's not expired. Most alarms expire 7-10 years after the manufacture date.
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.
In most cases, you can find the 'hush' button on the smoke detector's cover.
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].
Chirping is typically caused by mounting issues, a low battery, or alarm end-of-life.
NOTE: An interior LED turns on for 30 seconds after the door is opened. The user preset code “159”. Please input the user code again if the yellow light flashes with three buzzer beeps. Turn the knob counter clockwise to close the door.
Cover the Detector
Covering the smoke detector with a dishcloth can work. You could also use a shower cap or a rubber band and plastic wrap to temporarily disable the smoke detector.
Turning Off Hardwired Alarms
Look for a reset button in the center of the alarms, or somewhere else on the front or sides. Press and hold the button on each smoke alarm, one at a time, until the alarm goes off. Turn your circuit breaker off and back on if the alarm noise doesn't stop.