The answer to 'why is my AC blowing hot air' is that there could be several common causes, including a refrigerant leak, a problem with the compressor, or a clogged air filter. If your AC is blowing hot air, it's likely that the system is not functioning properly and needs to be repaired.
Some common symptoms of an AC blowing hot air include the air coming from the vents feeling warm or hot, the compressor not running, and the system not cooling your home effectively. The solutions can range from a simple fix like replacing a dirty air filter to more complex issues like a refrigerant leak that requires professional repair.