Yes the A/C Compressor is fine with good gauge readings. As mentioned if i clamp the two heater hoses it works good and cold unclamp the hoses heat returns. It is mixing hot with cold i would like to know where the three wire from the hot / cold control knob go to. It may have a Actuator like a car has. I am in hope of a KW tech reading my cry for help. Tanks Alan.

Alan Kane
Owner/Technician
Complete Auto Connection
Byram, Mississippi, USA