Thanks Dave, I was hoping I may find one locally, I have no Idea how to buy off ebay, I once tried and was burned.
I'm thinking its the controls, but may also need the Fan Resister the fan runs full tilt no matter where the selector is set and the heat solenoids are powered in the cool position but I have substantial heat coming out of the vents.

Leads me to think its a selector issue as the fan is not stopping and starting, and it would be coincidence that I have the solenoids passing hot water.

That my thoughts, I will look at it over the winter.

Angelo