why is my car ac blowing hot air

Your car's AC blowing hot air is commonly caused by issues such as low or leaking refrigerant, electrical problems, a faulty compressor, a clogged or broken condenser, or a dirty cabin air filter. Refrigerant is the cooling fluid in the AC, and if its level is low due to leaks, the system cannot cool the air properly. Electrical malfunctions like blown fuses or faulty wiring can stop the AC from working correctly. The compressor, which circulates refrigerant, can fail from wear and tear. The condenser cools the refrigerant, and if blocked or damaged by debris, it can cause hot air output. Lastly, a clogged cabin air filter restricts airflow, making it seem like the AC is not cooling the air effectively. Professional inspection is usually needed to diagnose and fix these problems.