Used our rv 3 weeks ago no issue. This weekend we take a trip and the hot water is not coming out of the faucets or shower. The heater is working and tank is getting hot. I drained the tank today and ...
I had the same problem, but I don't have a check valve (that I'm aware of). My problem was the "mixing valve". That mixing valve was clogged with mineral deposits from long periods of time in hard water locations like the Southwest.