Blend door location in 96 Roady wagon.

The other day I was driving the wagon, and I noticed the air flow from the dash vents went to almost nothing, and it sounded like most of the air was trapped inside the dash. Of course it was a hot day, and the car got warm very quickly. I was almost home when this happened, and figured I would poke around and see what was up the next day. The next day,when I started the car, all was fine. My wife mentioned the same thing happened to her a few weeks ago when she was on a short road trip herself. Has anyone else had this happen? What's the fix?

Had this happen on a recent road trip. It was foggy.

Best I can tell the AC froze up. Turn the system to vent/econ for a few minutes and see if it comes back.

Not sure on the permanent fix though.

This happened to me right before Wagon Fest. Frustrating cycle. Topping off the Freon was the fix for me.