I have a 1980's-something Skamper. Last fall, the heater worked just fine. This year, the fan comes on but the pilot doesn't flame on. I don't smell any build-up of propane. Yes, the propane is on at the tank and at the main heater shutoff. I did clean up the contacts to the electrode assembly. I can live without the heater but it sure is sweet to heat up the interior a bit before crawling out from under the down.
Here's what the heater looks like along with the wiring diagram. I'm hoping whatever part might need replacing - if it's something broken - will still be available.
Skamper heater guts.jpg
Skamper heater wiring diagram.jpg