Hot Water Question - Help Please

This is a very simplified diagram of how the RV trailer water system is layed out. Might give a clue where to look.


If you have COLD WATER at at the sink then it must be at the INPUT to the water heater as well. Pehaps the winterizing bypass vales are not fully in the correct position.

This is a typical three value hot water tank bypass setup. Note the oblong values indicate which direction of water is affected. Might want to be sure the valves are completely turned.


Roy Ken

tenbear wrote:
Maybe switching the water heater to bypass would provide a clue.

I bypassed water heater - cold water runs through the hot side of the faucets??

powderman426 wrote:
I would start by opening the outside door and pulling the safety valve open just a bit to see if the water will flow from there and if its hot. Be very careful in doing this so you don't get burned.

Pulled valve at hot water heater - hot water does come out

Hey Powderman - I grew up in Mt. Vernon - where you at in Ohio?

Maybe switching the water heater to bypass would provide a clue.

I would start by opening the outside door and pulling the safety valve open just a bit to see if the water will flow from there and if its hot. Be very careful in doing this so you don't get burned.

There are sever posts about the check valves going bad, and causing a problem like yours.

Dusty