Periodically, the air goes from nice and cool to warm and somewhat humid.l have had it back to the dealership many times.The freon level is fine and everything else checks out.Of course, it wo not ever malfunction for them.l live in a very hot and dry climate, so l do not think anything is icing up.Has anyone else had this problem and how did you solve it?

The A/C shuts off during hard acceleration, when the evaporator gets too cold, or when the low pressure line is pressure gets too low.

Check the cabin filter, restricted air flow might be causing the evaporator core to freeze up.