My 2001 Oldsmobile
Aurora has had the battery disconnected due to a repair that was needed. Since then the A/C will only blow out of the defrosters. It is still cold but will not blow at you on any other settings. The battery was disconnected when worked on. Since it is electrical I think it needed to be re-calibrated and wasn't. What is the problem and where is the location of the problem, and what part is needed if any.
Please help me with this matter.
Thank You for your assistance
P.S. The engine is a 3.5 v-6 Cadillac engine