2002 Mazda 6 no hot air

Hi there,

Thank you for the donation.

First thing to check is are the heater hoses going from the engine to the cabin both hot with the heater on, if not the heater control unit or heater tap may be faulty or the actual dash control actuator may have failed, check the hoses and let me know what you find, and I will look into it further.

Mark (mhpautos)