Quote Originally Posted by DJP View Post
Well, I am back up and operating.
I hesitate to use the word "solved" bc I have no idea why they work the way they do.
I replaced all five upstairs units after trying to replace all their batteries.
The new units are hardwired and have the internal 10-year battery.
I have a separate co2 alarm with new batteries.
They really only like to go off around 2am for you to check them.
We tell people replace the battery every time the time changes.


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