I have a 2005 LY gas MH, 30 ft w/ slide and have noticed that the temp control knob on the dash does not really adjust the temperature up or down, but only turns the flow of radiator fluid to the heater core either on or off. There is no in between. Once the knob is turned up past a certain point, the temperature of the air that comes out into the cabin is just plain hot. I called AS and they said "yep, that's the way they made it." I'm not very happy with that
, but, does anyone know of a way to modify this system so that the heat temperature is truly adjustable?