Originally Posted by B36
Propane is liquid. If not used enough the liquid will plug the hose. OR rot it. remove and replace hose is the quick answer..
Liquid turns to gas thru orifice (in order to burn)
Like gasoline liquid does not burn. only the vapors burn.
Next the output valve of supply may be not working. (Dirty)
Next The pressure reducer may be bad (regulator)
Sorry, you have been mis-informed.
Propane inside the lines of an RV is not liquid, it is a gas under pressure. For propane to be liquid while inside the lines it's temperature would have to be at minus 44F or lower. Above minus 44F it begins to boil. Also propane is drawn off from the top of the tank as a vapor not off the bottom of the tank as a liquid.