Dont know how many people have actually pulled apart the heater controls etc, but basically the lever switches that control Hot/cold, fresh/recycled etc work off a cable. In order for the cable to be moved the lever switch is fixed by a plastic pin/lug/clip at the fulcrum point.
Just curious if anyone knows of a way to get these clips/pins as wreckers will not separate them from the unit, and this is the only thing busted on mine.