HVAC Recirc/Fresh Air Question

Hello,

I just had to replace my blower motor (2005) and all of a sudden it is staying in recirc mode no matter what I choose. I know the door works because when I turn the system off, the door "closes". But as soon as I turn the system back on, it goes into recirc mode and I can't change it.

Is there a system "reset" or something? When I unplugged the blower motor could I have "upset" the system?
Everything else works fine. I just can't choose fresh air.

I'm a new owner and trying to learn the ticks.

Thank you!!