Small propane heater problem.

[Fuddyduddy1952]

I'm trying to work in a small insulated shed and I use this 15,000 btu propane heater. It probably has 50 hours use total. I make sure all connections tight, propane on, set dial, press/hold pilot valve & light. Release pilot valve after 30 seconds or so.
It runs normally for a couple minutes then sounds like a jet engine & flames shooting out! I quickly turn gas off. I've tried it twice, same thing. I'm guessing it has a pressure regulator that's malfunctioning.
I assume just replacement is necessary unless someone has an idea what's wrong?

 

[Fuddyduddy1952]

I guess disregard.
I took it all apart, sprayed Aerokroil in everything, back together & it's been running fine.
If it blows up I'll report back!

 

[grsthegreat]

Ya, probably rubber regulator valve sticking.