Strange Part in a Strange Place
A few days ago our hot water just quit flowing from all faucets in our Itasca Class C motorhome. The cold water flow was just fine and the water pump sounded normal. After scratching my head over ...
Forum Discussion
It is the internals of the check valve on the hot outlet of your water heater.
A check valve is used vs a shutoff valve cause it's cheaper and easier to install.
The check valve is there so water does not back flow into water heater tank thru hot outlet when the water heater is bypassed (keeps from pumping anti-freeze into WH and allows water to flow thru hot lines when water heater is drained)
As you have found out..when they fail no hot water flows.
So you can:
Replace it (and wait for another failure of the cheap junk)
Install a shutoff valve in hot outlet line so you don't have check valve
Or just leave the internals out and forget about it unless you have to winterize RV using anti-freeze
A check valve is used vs a shutoff valve cause it's cheaper and easier to install.
The check valve is there so water does not back flow into water heater tank thru hot outlet when the water heater is bypassed (keeps from pumping anti-freeze into WH and allows water to flow thru hot lines when water heater is drained)
As you have found out..when they fail no hot water flows.
So you can:
Replace it (and wait for another failure of the cheap junk)
Install a shutoff valve in hot outlet line so you don't have check valve
Or just leave the internals out and forget about it unless you have to winterize RV using anti-freeze
