'65 Caravel Hydroflame
I've taken the unit out of the trailer and it was in pretty good condition. I examined it thoroughly, intake exhaust, cabinet etc. the pilot hadn't lit in decades as far as I could tell, it was hopelessly plugged up and rusted inside. The thermocouple was corroded but operated. I replaced the pilot and thermocouple and the unit operates. HOWEVER...
I can light the pilot, adjust the temperature knob and the main burner ignites and it runs and warms fine until the target temperature is reached, then the unit clicks and shuts down. SHUTS DOWN COMPLETELY; the main burner AND pilot goes out. Sometimes it will actually cycle on and off a couple of times, but that's it. What could I look at next? The tanks are new and full, I've a new regulator, I've managed to get the original LP fridge working and managed a hack to get the oven running again (although the new pilot standing flame burns like a torch not a match flame), I've even pulled the rust bucket water heater and installed an instant on LP unit that works nicely. During all this LP refurbishment I blew out the old lines and checked thoroughly for leaks. But the heater has me stumped, it works - sorta.