Tried 2 seperate HVAC (manual) control panels, still no control of the air direction.

[Hamfist]

All buttons and knobs work, heat temp, fanspeed, a/c, recirc and rear def. But the direction will not change, face only... just installed a known working panel, same problen. What controls the air direction after the knobs?

[80stech]

The flaps are usually controlled with stepper motors or cables. The control panel only controls the actuators for the air flow not the air flow itself.

[Hamfist]

Ok, well nothing changes, so is there a module inbetween the control and the actuators?

[cn90]

IIRC, there are tiny electrical motors that control the flaps...

[Hamfist]

Yes, all the flaps are controlled by actuators. What controls them???

Thats what im asking. I turn the knob, the air direction does not change.

Where is the disconnect? I have replaced the whole panel. Still the same symptoms.