"Why is my A/C not cooling?" or "why is my A/C not cooling enough?" Don't wait till we have consistent Hot Weather, get your A/C Performance Checked today. The lack of well needed cold air could be from a Freon leak caused by a failed o-ring, seal, hose or component. If there is mold or mildew which could accumulate in the evaporator core, air would have trouble reaching your air vents. A hose could of come loose. Ventilation fan is fried. Whatever the cause of your airflow problems, we have the answers.