climate control

Ok here we go 2000 chrystler town & country heat and ac ok but the actuators for the pass ,driver dont work nor the climatecontrol knob for the def&floor are not working stuck blowing in def mode hot air had the pc board out seems ok bearing that everything else,rear wiper,def ,ac ok.checked relays in the eng comp and all fuses ok. what can it possibly be. :shakeheadthanks please help need the ac getting hot here in nj.

Heater controls...... Had a 2005 Caravan vents would move all over dash , controls were bad.