Hot Water Question

[Scenic Cruising]

We recently purchased a 2000 Scenic Cruiser Millennium Edition. I need to know why I have hot water without the pump running? It’s hot, but as soon as the electric pump turns on, it goes lukewarm or cold. It has me really confused and I do have the bypass set right. Anyone else had this issue? Thanks in advance!

[Scenic Cruising]

Has no one ever experienced this?

[Dennis4809]

How do you have water pressure without the pump running? Are you connected to city water and if so, why do you need the pump?

[Scenic Cruising]

Thanks for all your help! After removing some covers, I found the issue. Someone had replaced the pump in the past and hooked up multiple lines to the water manifold incorrectly. They even had the cold/hot water bypass hooked up wrong.

[Dennis4809]

Thanks for the update. Glad you found the issue!

[THenne1713]

If OUTSIDE SHOWER FAUCETS Open (from WINTERIZING), they bypass tank, just like the tank bypass and MIX cold w/ hot leaving tank. Luck