Join Date: Mar 2011
Location: Sonoma County & Reigate, UK
Submit Photo: 1
Photo Submissions 3 Times in 3 Posts
We had the same problem, all hardwired, all connected. (my understanding is that a bad battery will not cause them all to go off, only a real trigger) Went off all the time, (all of them) finally realized that the cold air return filter near one of the alarms needed to be changed. Everytime the heat started up the dust would blow back from it and cause the alarm to go off.
A bit of research on Google found that one for me, amazing...
Glad you and family are all ok, I probably would have needed a xanax in addition to that drink.