Mechanical A/C Diagnosis Standard vehicle mechanical diagnosis is preformed at all locations and in most cases can be completed within one hour of appointment time. Electronic Troubleshooting Today's vehicles have more computing power than was used to put a man on the moon. What this means is that every system in the vehicle is closely tied together with a series of computers that communicate and affect one another. At Carlisle Auto Air we have the equipment necessary to diagnose and fix these computer problems when they relate to the A/C system. Vacuum Troubleshooting Vehicle engine vacuum is commonly used in the climate control system to do various jobs such as controlling the flow of air through the correct vents (Defrost, Panel, Floor). Carlisle Auto Air has specialized equipment to assist our ASE certified technicians in their diagnosis of vacuum leaks and related problems. Refrigerant Equipment Diagnosis Carlisle Auto Air is an authorized service facility for White Industries ® and Sercon ® refrigerant handling equipment. Our Equipment technician is factory certified for the repair and maintenance of this equipment.