Have a problem with the temp control for AC/Heat. Its blows cold when all the way to cold side but the min. I move it the the different temp settings it goes full hot. I checked the vacuum lines and they seem fine. The vent dampers change fine from def to vent to floor. When it goes full hot it moves to the floor. When I move it full cold it changes to vents. I checked the temp sensor and the little fan that pulls air across them and its working. Is it possible the little control cpu is bad? Is it possible that a hot/cold damper exists and is stuck? Its kind of a pain regulating the temp having to turn it off and on manually. Does this on Economy and Hi/Auto/Lo, doesn't matter what setting its on.