Darn beeping - again

[CamperBink]

When closed, and only when closed, with power switch off and propane off, whether in the garage or outside, and whether connected to electricity or not, we get a loud beeping alarm (can't really tell if it is smoke or CO) at random times. It did this all winter in the garage. It did it in the driveway after we got everything ready for spring. It has done this since we bought it new last August. I don't think it can be detecting anything - humidity seems not to be a part. We didn't use any air freshener or cleaner other than CampSuds and nothing recently. I have read every beeping thread, but I do not believe this to be a battery issue, or a propane issue or a humidity or cleaner issue. Any other ideas? I am going to drive my neighbors crazy with this beeping!

[rickst29]

It's most likely the smoke detector over the bed.

I also experienced the 'infernal beeping' through winter a few years ago. In more recent years, I have always pulled the smoke detector batteries for winter storage. I remove the detector body (as in changing the batteries), and then set it on the bench seat (without any batteries in it at all). Placed on that seat, it's impossible to ignore when packing for my first trip in the Spring. That's when I install a fresh set of batteries, and clamp it back in place above the bed.

[kengiesige]

It could be the propane alarm when we bought our 2005 2720 SD we bought in Oct 2016
a bought a year or so later the propane low battery alarm kept peeping we had to replace
it they only last about 5 years or so after it was replaced there has not been no beeping
noise------ Ken