Why Is My Hard Wired Carbon Monoxide Detector Beeping. Alarms with 9V or AA batteries require fresh batteries at least once per year. A dead backup battery.
1 Chirp about 1x per minute. Batteries facing wrong direction. Alarms with 9V or AA batteries require fresh batteries at least once per year.
Its annoying but its usually nothing to worry about.
5 beeps every minute. Thereof why is my carbon monoxide detector beeping every 30 seconds. The alarm pattern is four short beeps followed by five seconds of silence followed by four short beeps. I went to ace and bought some energizer AA batteries to double check but the beeping continues.
