I found the problem. :sporty
In the cold water intake is a little plastic valve consisting of a white plastic piston shaped like an automotive valve with an O Ring on it. There is a spring that presses the piston and O Ring into the valve body.
I believe this was designed to keep the water in the water heater if the pressure on the cold water line drops. It is hard to tell how exactly it functioned, since it came out in pieces.:censor
I believe without the return spring in place the valve was sticking and causing a slight vacuum in the hot water tank this cut off the flow on the hot water side until this pressure was equalized.
Thanks to everyone for the help!:ola
It was not a total loss. I am no longer afraid to pull my little egg apart. I have the bench removal down to about 5 minutes.
Since I had the bench out anyway I tested my battery
and found the FO had not quite spoken the truth when he told me the battery
had just been replaced. :splat
The Casita battery
was more likely used as a replacement in another rig.
I found a small old Marine battery with several dead cells in the battery box. :reyes
I replaced it with the local battery warehouse’s best RV battery that would fit the battery box. :thumb
I am starting to be very skeptical about everything the FO told me he had recently done to the tt. I think I can use his comments as a list of things I should check right away. He seemed like such a nice guy – marriage counselor by trade – hum?.......:wak
At least the exterior and the interior including the furnishings are in really nice shape.
I will look for parts tomorrow. I am also having pilot problems. If the water heater turns out to have too many problems I will just replace it. I found an exact replacement water heater for $195. It looks fairly easy to replace, especially now that I have all the lines disconnected.