Forum Discussion
Old-Biscuit
Jun 23, 2015Explorer III
mchero wrote:
Rheo1
Please tell us the make/model of your water heater.
Some of the higher end Atwood hot water heaters heat the water to 180 deg. and mix that 180 deg. water with cold water via a mixing valve on the rear of the HWH. Their is also a winterize valve on the back of the hot water heater. This mixing vale can stick giving you either scalding hot water,lukewarm or cold.
Clarification:
Atwood XT models use Mixing Valve.
Normal t-stat preset for 160*F (vs 140*F for regular models) ECO (High temp t-stat) preset for 180*F and Mixing valve output preset for 130*F
Also..... remove ALL airators (spelling?) on each faucet and/or spraw wands. I was amazed at the amount of garbage that collects behind them. Put them back on when cleaned. They help save water.
XT Models with Mixing Valves have an issue with clogging up and then only having cold water going into hot water line.
Seems you have IDd problem being with bypass valve allowing cold water to flow into hot water line. IF that is true then you must have only a check valve in hot outlet that is going closed otherwise you would have warm 'hot' water vs cold 'hot' water.
Sometimes valve handle moves but valve doesn't......handle just slips on valve stem. Remove handle and turn stem with pliers.
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,191 PostsLatest Activity: Jan 19, 2025