My guess on the water heater issue is this.
The electrical leads were dirty and not operating the burner correctly. The switch inside the coach that controls that burner when turned off wasn't actually turning the burner off. It was left to run for an extended period of time one day while here in the RV park and the water in the tank was boiling. When I came back after a day of hiking and turned the water back on at the hookup it caused the water to overflow that was boiling in the hot water tank and when it did it came out of the release valve where the pilot is. This water caused the pilot and the burner to go out.
After I cleaned the electrical leads, I did manually re-light the pilot from the outside. Since this time the water heater, and burner are working correctly. I just turned it on via the switch inside and I hear the roar of the burner.
J.Chet USAF LTC Retired
Teddy & Bella (Soft Coated Wheaten's)