What willcause your 2005 suburban air condition to be blowing cold then all of a sudden blow hot like the heater is on?

If your 2005 Suburban's air conditioning is blowing cold air and then suddenly switches to hot, it could be due to a few issues. One possibility is a refrigerant leak, which can cause the AC system to lose its cooling ability. Another potential cause is a malfunctioning blend door actuator, which controls the mix of hot and cold air. Additionally, a failing compressor or electrical issue could also lead to this problem.