The one in our 05 went bad and would go off when the lp had been shut off for weeks, but as said, don't ignore it until you are sure there are no leaks. The neighbor would call and tell me the alarm in the rv has been going off. I replaced it and had no more problems. Mine was the one by CSI if that is right and I heard they we out of business so I am not sure what I will have to get when this one dies.
Goody Two Shoes and the Filthy Beast
2008 Chevy Silverado 2500HD
Duramax and Allison 6 speed
2012 Wildcat 282RKX
You can't make things idiot proof, you can only make them idiot resistant.