I did a final tour of the area in the pickup and am further impressed with the town of Niobrara. It's clean, neat and has a full set of amenities. I crossed the Chief Standing Bear Memorial Bridge into South Dakota. Standing Bear's story, and that of the Ponca Indians, is interesting.
I run the water heater for 20 minutes each morning or when needed for a shower. This morning I heard it "flame out" after about five minutes. Uh-oh. Multiple relight attempts were unsuccessful and the shower was lukewarm at best.
I pulled the schematic:
Fairly simple. It was clear that the control module needed 12v power through the switch, the thermal cut-off and the temperature control thermostat. After checking that I wasn't out of propane, I went online to rv.net and learned that the thermal cut-off is a frequent offender. I removed it from the circuit and voila it worked!
I did some more research and found out that the possible offender is a common overheat protection device. I did a resistance check and it appeared good. It's a "one shot" device and is either good or bad.
I put it back in, put the volt meter on it and fired it up.
Hmm... it's working. Could have been corroded contacts. I'll find out in the morning.
I had only three requirements for a "permanent camping" life: hot coffee, hot showers and an internet connection. I hope this doesn't turn into a recurring problem. If it does I'll replace the current tank type with an "on demand" water heater but that will require a mail order and an unplanned expense.
I've pretty much "done Nebraska" with very favorable impressions. I guess that I can update my "states visited" map.