propane leaking on 2007 endeavor

[gto19]

my buddy owns a 07 endeavor and ever sinse he bought brand new its always had a propane smell around it.we located the leak coming from the regulator on the propane tank .the regulator will freeze up then vent out a propane smell out of the vent .we replaced the regulator with a new one from camping world and still does the same thing. any suggestions on why its doing this?

[jww]

One possibility is moisture in the tank. If this has occurred since the unit was new it could be that moisture entered the tank prior to installation.
I developed a propane leak at the float level fitting. Upon replacement I was informed to "purge" an LP tank that has been open to the atmosphere, or to add a few ounces of methanol into the tank before sealing to dry any moisture present. Might not be the cause but something to give consideration.