Adjusting water temp
We have 2016 Outlaw 37rb and had opposite problem that the dealer could not solve after a few visits: the water would start out kinda' hot, then quickly get cool. There is a mixer valve (not winterizing valve) behind the water heater. Our access was behind the tiny closet under the stairs to the loft. It was completely open, mixing cold with hot. We closed it, and adjust the water temperature with the appropriate handles in either the kitchen, bathroom or shower.
I was required to use the dealer for warranty work, or a place much further than that. I called a repair shop that we used for an older rv and he could easily troubleshoot the problem over the phone. I bought him a gift card to a local coffee shop.
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