1998 Olds intrigue, air conditioning dual control. Passenger side hot. why? on 1998 Oldsmobile Intrigue

When air is on we get air on driver side, heat on passenger side. Is this common problem? Can you help? Thank you.

Asked by for the 1998 Oldsmobile Intrigue
1 answer
check your blend door actuator to see if the door on the passenger side is working