Originally Posted by overlander63
The valve in the center bypasses the water heater if opened. The other two valves turn off flow to and from the tank.
I was just suggesting that even though the valves may look to be in their normal operational position
, go ahead and close-then-open them again. One of mine acted like it was clogged or something, and operating it once or twice seemed to clear things up -- suddenly I heard "thank you!" from the shower the moment I did this.
I was baffled why this even worked, with a newer trailer and not a hitch before or since (it was about a year ago when it happened).