I own a 2007 FR Sunseeker (about 30'). The propane alarm has started going off whenever I turn on the generator. Matter of fact, I'm pretty sure if I just turn on the master electric switch near the door, it is going to go off (I haven't tried this, but will next time I go visit my RV). This did not happen during the winter, but we've had a brutal winter in the Poconos, and is it possible I sprang a propane leak due to harsh winter weather? Due to the alarm, I turned propane tank valve off firmly and noticed I'd gone from 2/3rds full to 1/3 full (over winter).
Does propane leak into RV over winter when RV not in use? I had it professionally winterized (and it still is winterized) and kept it going by plugging it into an external outlet in February. Otherwise, I was turning the generator and engine on about once a week for 3 minutes, and that seemed to work. Back then, the propane alarm was not going off when I'd do this--but now it does.