Yes, it's happened to me twice on my 2013 Edge Limited - except it was the opposite - I had AC on the drivers side and heat on the passenger side of the centre vents. Good news - there's an easy fix that I found when I googled the issue - and I used it both times and it fixed it both times - best part is that the fix costs nothing. With the car in park, press the POWER and DEFROST buttons at the same time on the main console. Hold them down for about 3-5 seconds. Then press POWER again and see if the cool air flows on both sides of the vent. Let me know if it works. Saved me a trip to the dealership both times and cost me zero to fix. #winning
