Frequently Asked Questions
First, place your ADT-monitored security system in test mode to prevent false alarms that may occur when replacing the smoke alarm battery. Then, twist the smoke detector counter-clockwise to remove it from the mounting bracket. Remove the old battery, making note of its orientation to ensure proper polarity when putting in the new battery. Fit the new battery into place in the same manner as the old. Replace the detector in the mounting bracket by lining up the tabs, then turning clockwise. Once it is back in place, remember to remove your system from test mode.
Resetting your fire alarm is easy. Simply remove the back cover to reveal the fire alarm panel circuit board. Press and release the button on the circuit board two times. Then press and hold the button for a count of five until the LED light on the front of the alarm turns solid. After a few seconds, if the LED starts to blink slowly, it is successfully in pairing mode.
The most common cause of fire alarm chirping is a low battery. Replacing the battery (see instructions above) eliminates chirping in most cases. If it continues chirping even with a new battery, there may be something wrong with the smoke detector and it will need to be replaced.