CO/LP Detector went off after winterizing

Rick24

Has anyone had their RV Antifreeze set off their CO/LP Detector?  I winterized the trailer a couple of days ago and the detector went off today.

pthomas745

Detectors can be set off from a lot of things. And this could just be coincidence.  Depending on the model of the gas detector, the little pattern of blinking lights  and sounds is trying to tell you something.

Detectors can also alarm when the battery is reaching a fairly low state of charge, so check that, also.

So, which detector?  The "older" Atwood model, or the newer RVSafe model?

Basil48192

My RVSafe model seemed to alarm quite often...for no apparent reason.  I finally replaced it this year with a new unit (same model) and it has been working fine.  I think a lot of people with 2021 RVSafe models had similar issues.  

Rick24

This was an RVSafe model.  I saw several cases of this happening in goodsam, Jayco, and Thor forums.

CibolaSisu

I also have a RVSave model in my 2022 t@b 320s Boondock and had to have it replaced once by RVSafe after early failure. My current RVSafe expires 10/2027.  As a back up I purchased a handheld portable carbon monoxide detector for future troubleshooting.

I JUST winterized my trailer last week. It is on shore power. Propane off and unhooked, and lines cleared. Battery still connected. Fridge off. Alde off. (We plan to camp more before winter REALLY sets in).

This weekend CO alarm started going buck wild and I had to disconnect it.  Sure enough though, the handheld detector read a CO2 level elevated at 29.  So it was not wrong.  WHAT IN THE WORLD is leading to the elevated CO?

Basil48192

I had a similar experience earlier this year and finally found a very small propane leak from my stove top.  My propane monitor would alarm periodically, but there was also a very faint odor when I first entered my camper.  It didn't really smell like propane....more like stagnant water...so I thought I might have a small water leak.  To make a long story short, I found the leak on the stove, repaired it and haven't had any issues.  
The leak was on the gas manifold that feeds the two stovetop burners.  I had to remove the stovetop to access it.  Below is a photo that I posted once before showing a damaged rubber gasket (yellow arrow) and the subsequent bubbles (red arrow) that indicated the propane leak.