2012 Ford Focus Air not blowing through vents

[Fordina]

Air is blowing through defrost vents and not through the front vents. In the diagnostic sequence, is there a fuse that I need to be looking for first? I could not find one in the manual. If not, can someone send me a picture of what vacuum hoses to check? Would I just need to do a visual inspection on them or does a mechanic need to do a smoke test (or whatever they do)? I assume that after checking them, the next step is to check the blend door actuator? How would I check this? Thanks for walking me through this!