We have done that trick a few times.I usually will figure it out before the alarm goes off but it is still disturbing once you realize the RV is full of LP gas.
It seems they always place the LP detector back in the bedroom. I get it that its so you don't die in your sleep. But IMHO they should put that darn thing upfront where all our propane appliances are.
Like in my case it didn't have the conditions to get low and travel ALL the way to the back of my MH to set the darn alarm off but there was enough propane in the front to blow us up to kingdom come yet the alarm did not go off.
In The rigs we have owned the propane detector is near the floor in the kitchen area. The reason for placing them low is because propane is heavier than air and settles to the lowest point assuming there is no wind, and it's in the kitchen area because of the propane appliances.
2012 Hitchhiker Discover America 349 RSB
Bigfoot levelers, Tailgater satellite
2011 Ford F350 PSD, Pullrite Superglide
RDS Toolbox Tank Combo, Garmin GPS & an itch to hit the road
Remove the sink trap and see if anything is stuck in it.
Steve & Linda
Son married (1 DIL, 3 granddaughters 1 grandson)
Daughter can now be called a Teacher.
Miami Co. Kansas
2004 F350 CC dually 8ft bed 6.0 PSD
2009 Bighorn 3670RL
B&W under bed hitch with 18k companion hitch