Why is my A/C blowing out hot air in my 2010 dodge nitro but is full of freon

Hello, If you have an A/C gauge set, you can monitor the pressure on the high and low side to diagnose the issue. If not, there is no accurate way to test if the system is properly filled. Check your fuses first, the A/C compressor relay (if you have one), and then see a technician. There is really nothing serviceable at home without equipment for recovery/refill of the refrigerant.