If your car's AC works but isn't cold enough, the system may be operating partially rather than at full capacity. This often happens when the refrigerant is low, the condenser cannot dissipate heat, or airflow through the vents is restricted. A dirty cabin air filter, debris on the condenser, a defective radiator fan, a worn AC compressor, or an incorrect refrigerant charge can all limit cooling. Some vehicles also have HVAC blend doors that mix warm and cold air to regulate the temperature; if a blend door sticks, the AC may run, but the vehicle interior still feels warm. Because several problems can cause the same symptom, checking the AC system pressures, temperatures, fan operation, and airflow is important. Proper diagnosis prevents unnecessary parts replacement and repeat repairs.

Auto Air Conditioning Service in Ann Arbor, MI