AC Blowing HOT, Not Just Warm

Was in the jetta coming home today. Put windows up, hit AC switched and turned fan speed to two. Was starting to cool a bit and then it suddenly got very hot. The air is not just coming out warm its coming out HOT like the heat is on. Temp dial is all the way to cold. Compressor still working, I can feel it kick on. Coolant is fine, engine temp is steady. Any ideas?

I have an 02 beetle with those same symptoms. Mine is caused by a blend door issue. Still in the process of repairing it. Check to make sure both blend door levers are working at the knobs and at base of the blend door. Check out my thread for progress.