Frozen Regulator ?? Please help.

We had allot of doo last night and when I put my hand on the regulator it was frozen shiny like glass. Once I put my hand on it and held it on and it melted the propane would flow again. I lite the stove burner it would burn full and the dwindle down to more or less out I'd check the regulator and froze again. I finally went out with a rag and put my hand on the regulator until the frozen went wet again and then dried it all with the rag, I fired up the furnace again and it stayed lite until I left this time.

I'm pretty positive it's not the regulator if it was propane still wouldn't flow when I warned it up