Thanks Hay,
St.Regis Falls? How's the weather- snicker, snicker - ? I was born in Newcomb, grew up in the snow belt and moved to Virginia 3 years ago. Left my snowblower near Syracuse
Anywho , I needed a cartridge for the external filter and the guy at my local "has everything" hardware told me what is probably wrong with my heater.
He said the burner gets distorted and touches a rod and the fuel switches off. Actually,his pencil diagram makes more sense than my explanation.
So tomorrow's project is to take apart that area and see what is what. It is also an opportunity to get rid of any soot/carbon build-up.
I'll report back if/if not successful.