24RKS No Hot Water
My 2010 24RKS has no hot water. I don't mean the water heater isn't working, but that whether using the onboard pump or external potable water connection, no water at all comes out when I open any of the hot valves on the faucets. This has been happening since I de-winterized the unit last Spring (didn't camp much this Summer due to building my house).
The unit has the traditional 3-valve setup for bypassing the water heater. I have read elsewhere that there is sometimes a check valve at the outlet of the heater that can fail shut, but I can't find anything like that. I did notice when de-winterizing that one of the valves (inlet or outlet, can't remember which) was much harder to turn that the other two, and the handle could actually be rotated more than 90 degrees in either direction. I'm suspecting that valve is defective and is shut. Is there anything else I could check before cutting into the plumbing?