Very little air blowing through air vents! on 1996 Chevrolet Tahoe

The fan is on high and very little air flowing through air vents. A/C or heater air not coming through air vents very little if any. Looks like something is clogged or restricting the air from flowing. Not sure if air vents are connected,or some kind of filter is clogged. Just replaced the control head recently.

Asked by for the 1996 Chevrolet Tahoe
check the door motor on the far passenger side under the blower, its a pain in the butt, thats the only thing i can think of because everything is electric. dont worry im going threw the same thing