Climate control. stuck on front defrost only. Help :shock:

Ive been trying to figure this out for a while now. My climate control on my 1991 seems to be stuck on the front window defrost option only. I can move the arm left and right to the other positions fairly easy, but it does not change where the air flows. I've tried all combinations and still nothing. I would like to have my forward facing heat back! Does anyone have any idea what i should try...?
Comments
armrest ? auto belt thingers-armrest-transformers...
good excuse for dna-paint uh?
i guess you're pretty sure you didnt loose it somewhere along the road... anyway feel for yah... gl, better luck next time...
excellent buildingthread too
Tada. all fixed.