ENGINE A/C PROBLEM, NOT ALWAYS COOLING
We have a 2006 Coachmen Aurora Class A motor home with a Ford F53 chassis and a 6.8L V10 engine. We are having intermittent problems with the engine A/C system. We've evacuated the system (3 times),...
Forum Discussion
I clamped off the hose ahead of the cold/hot valve and it didn't make any difference in the coolness of the air (this was suggested on a Tempcon site). So it appears the valve is working properly. I switched the valve to heat and the air definitely got hotter and when I switched it. I heard the door switch, but it sounded like it closed hard, like it might be sticking and that is why I'm thinking we may have a door switching problem or vacuum to it.
