OK, Richard's crazy question of the day. From the moniker you can see the coach is a 2002 MADP, it has hydrohot but supposed not with the engine heating option.
After a short drive to my house from storage, I hooked up to a water supply and started to flush the taps. I was completely surprised that hot water ran from the hot tap. The hydro hot was NOT on, the electrical heater in the hydro hot was NOT on. What's up with this? Is it common for the coaches to be plumbed so that circulating water from the engine heats the hot water in a hydro hot?
I wonder if I actually have the hydro hot preheat for the engine, but the coach is not wired to the controller to activate it?
Sorry for all the goof ball questions.
Richard, Rhonda, Ty, and Alex
1995 Newell, 470HP Detroit Diesel Series 60