One of our smoke alarms started doing a short chirp every couple of hours. I assumed it was due to a low battery, so I replaced it. Didn’t help still beeping every couple hours.
I then unplugged it from the wall, took the battery out and held the test button down. Then replaced the battery and plugged it back in, still chirping every couple hours.
I then replaced the entire smoke alarm, still chirping.
THEN replaced every battery in every smoke detector in my house and still chirping every couple of hours.
Any idea what else I can try?! It’s driving me nuts