2001 Dodge Dakota-Heater doesn't blow at defroster or floor

pull the knob off. it could be cracked where you can't see it and it's not turning the switch to the position you want it at. let me know

I did in fact pull off the know to see if it may have been stripped, and turned it manually. Still no change.

sorry i took so long to reply. been having computer issues. in that case, i would look into a bad actuator. it controls the blender door. you might have more than one located on the heater box behind the dash. hope this helps

Thanks...a bad actuator was in fact what was diagnosed. I appreciate the feedback.

i'm glad it worked out. lets us know if you need anymore help.