My 2014 Crosstrek XV has been having issues with the air conditioning system. Has anyone else had the same issue described below? And if so, what was causing the problem?\n\nThe A.C. provides plenty of cooling for the first 15-20 minutes of a trip, then suddenly the cold air coming from the vents becomes unbearably warm and heats up the cabin. This event lasts for 5-10 minutes and then, all on its own, the cold air starts circulating again. I took it to the dealer 2-3 times (while under warranty) and they could find nothing wrong.\n\nI am mystified. Any help or suggestions would be welcome.