If that doesn’t work, take the smoke alarm off.
Resetting first alert smoke detectors. Open the smoke alarm battery drawer. The first step is to open the package. To reset the alarm, the unit needs fresh air and time to burn the contamination off the sensor.
Remove the motherboard and battery cover. Disconnect all power sources (if you’re replacing a hardwired alarm’s battery, you’ll want to to disconnect if from any. Using flat screw drivers, pull apart the four tabs on the smoke detector.
Co gas is colorless, tasteless and odorless, and a detector is needed to test ppm (parts per million) and alert you to unsafe levels. Find the device that’s going off and reset it by pressing and holding the reset button. You can reset your alarm by following these quick steps:
How to fix a chirping smoke alarm. Slide the tray out of the smoke alarm. Take the batteries out of the device.
Disconnect the unit from its power source. Press *72 (star, seven, two) to reset a smoke detector on an alarm. Resetting your first alert carbon monoxide detector.
This technology ensures that all smoke detectors in a house. Here’s how to reset your first alert smoke alarm: Push and hold the silence button for 5.