AC problem
 

I just got a new 2018 Ford ecosport se back in February of this year. First owner. I decided for heck of it to run the ac even tho it’s in the 50’s just to see just how cold I can expect it to get in the summer. Well it only kept it from getting stuffy and the air coming out of the vents was only a little cool. When I got home the car turned the fan down and the air started to smell. It only had 6 miles on it when I bought it. Was told it was used for service. Should I take it back to the dealership and have them check the ac out?