Chosen Solution
I need to know what fuse I can’t find it in the manual 2006 ford focus
@jovin that should be a mechanical vent selector (no fuses for that). Check to see if the cable connects to the vents door. Remove that cable and see if you can move it manually. There is a possibility that your vent selector is broken. Check this video as well as this one to see how it operates and possible fixes.
