Posts Tagged: car AC blows warm air

Car AC blows warm air — How to find the cause

Car AC blows warm air— How to diagnose and fix Many other things can cause an AC problem. A refrigerant leak is the most common cause, but even a fully charged AC system can blow warm air. If your car’s AC blows warm air, here are the most common causes in order of occurrence. They are: 1) The system is Low on refrigerant due to a  leak 2) The compressor clutch not engaging because refrigerant pressure is too low, the clutch coil is shorted or open. 3) The flow control … Read More