AC not working properly.

[AlleyCat]

This morning in the higher elevations of Tucson it was 40 this morning. I put on the heater for the first time and all was well. Then on the way home today it was in the 70s. I put on the ac and the passenger side got cold. But the drivers side is acting as though the heater is on. What is the possible culprit? Thanks

 

[Unholy707]

It’s dual zone, did you change the temps for both sides?

 

[AlleyCat]

Yes sir. Even tried playing with it multiple times. I was reading there are vent door actuators and the drivers side one is known to go out. Blend door actuators.

 

[Unholy707]

Yes, probably the motor

 

[Ralph]

This happened to me as well. The culprit was that the system was low on freon. Had the system recharged and the problem was gone. My car is a 2019 and uses the new 1234YF freon. Very expensive stuff (notice how everything good for the environment is never cheaper?). Hope this helps