I live in the United States. Have 2018 Roadster. This problem has just started in the pass three weeks or so. Start car turn on A/C and the air is cold. After driving for 20-30 minutes air from a/c is warm. then after 20-30 minutes it's cold again. what is causing this?
please don't respond that it's a Morgan and i don't need a/c. it's been 95-99 degrees here.
thank you
