AC fan doesn't change to VENT mode...

[Trimble Epic]

So, I was driving today and I realized the AC was not blowing in my face.. I manually forced the blow to vent mode, and still no air coming out of my vent. I do get air from the defroster vents, but not the face vents...

The FSM mentions to "Refer to Control Linkage Adjustment" but I can't seem to find that in the FSM.

Does anyone have experience with this?

[Trimble Epic]

Oh, it's on page HA-127.

...So, it's on the heater unit.

I wonder if the rats nest behind the stereo head unit could have a wire or cable hung up on the linkages? or is it nowhere near there?

[t.mcginley.jr]

Not sure what the problem is exactly, but I do know where the linkages are for the heater box. There's a big one on the left (drivers side) of it that controls most of the vents and then there's a bunch of smaller ones on the underside of it (not sure what they control). The part of the heater box that is near the stereo/head unit wires has no linkages or anything on it that could get caught up.