thopkins

Fixing for a friend. Passenger side blows only heat when AC is desired. Purchased the requisite actuator. Accessed old actuator, plugged in new actuator. Prior to screwing back into place pressed dashboard button controls, and witnessed servo operate as normal. Hand tested linkage to make sure linkage was intact and unobstructed. Accessed old actuator, plugged in new actuator. Prior to screwing back into place pressed dashboard button controls, and witnessed servo operate as normal. Hand tested linkage to make sure linkage was intact and unobstructed.Linkage worked and operated smoothly. Installed new actuator with three mounting screws. Once new actuator was screwed back into place, climate control was tested from the command buttons on the dashboard. No movement on servo. Unscrewed new actuator from 3 screws holding it in place. Depressed control button on the dashboard, and servo function normally. Reinstalled the actuator in its proper place by way of the three mounting screws, depressed button, servo failed to function. Double checked safe and smooth operation of mechanical linkage, double checked new actuator function, reinstalled, servo failed to function. Double checked safe and smooth operation of mechanical linkage, double checked new actuator function, reinstalled, servo failed to function. Ideas?

KyleH

iTrader: (1)

Assuming it's been installed correctly (this is pretty straight forward), then it sounds like actuator is not up to the task of opening and closing the blend door. Return to seller and try a different one.

For the benefit of the community, do you mind sharing where the source of this possibly faulty actuator to help others avoid the same fate? Let us know how the next one works out, or if you find another culprit rather than it being a faulty actuator.

TrueGS300

Have you looked closely at the splines in the blend door itself? The actuator may be spinning inside the flap splines and not catching on anything. Its a good sign that you can physically move the flap as you say, but use a light and mirror if necessary and look to see that the new actuator and the door have splines and that match up as well.