2017 heartland Sundance 3700 RLB- consistent hot water issues

[ChadAshley]

Hello everyone!
We are new recently new RV owners and we are having Hot water issues. When we take a shower we noticed that about every 10 seconds it goes from hot to cold?

Does anyone have any suggestions on why this would be happening?

 

[cookie]

Be certain that the water heater bypass (winterizing) valves are in the correct on/off positions.
Also if you have an outside shower make sure that both faucets ore in the off position.

Peace
Dave

 

[ChadAshley]

Yes I’ve checked that and they seem to be in the correct location. Anything else you can think that would cause this?

 

[jnbhobe]

Is this on city water or tank water

 

[ChadAshley]

This is on City water

 

[danemayer]

Yes I’ve checked that and they seem to be in the correct location. Anything else you can think that would cause this?

If you have the 3 valve bypass, the crossover valve needs to be closed. You should double check.