I've had propane smell twice in my coach. Once it was the little supply tube that leads to the pilot for the oven. When you light the pilot it would leak just a fuzz amount where the compression nut tightens to the pilot. Why the pilot didn't burn it off is a bit of a mystery to me. The other was where the copper line tied into the furnace. It had a little fuzz leak and when you'd turn on the furnace and blast thru the duct system it would suck that fuzz leak smell throughout the coach. S'pose the bottom line is check all your connections that come into the coach. Stove/Oven. Referigerator. Furnace. Water heater, but if that is leaking it should vent to the outside, but I'd chech it all anyway.
