Finally fixed my issue of only blowing hot air. Whether the temp controls were on blue or red it would only blow hot and no AC. What I did was take the aluminum caps off the coolant circulation valves which are located directly behind the overflow tank, careful not to drop any of the 5 screws. After lifting the caps off I lifted the yellow wrapped magnets off of the valves, which is one piece and then cleaned the base that the magnets sit on. I pulled the valves out careful not to lose the springs sprayed them with a lubricant and reinstalled. Put everything back together and now I have AC and control of my cabin temps. Easy to do yourself.