Kia Troubleshooting Questions? Ask a Mechanic
Sorry you are having issues with your heating and AC!
It sounds like you have what we call a "mode door servo" that is not moving the mode door, which when you change the position of the air and where it comes out, that servo moves a door inside the ac duct work to redirect that air.
Luckily this one looks like it is pretty easy to get to. I attached the directions and also a picture of the location. On the picture of the location you can see to just the left of the mode door servo, there is the steering column, so if you are looking up from the floor board it would be to the right of that. It will have two screws and a connector on it.
It is very important, once you get the servo motor out, that you try to move the door with your finger or small screw driver to make sure the door is not physically binding or blocked. IF it is, then thats a whole new issue that we can address.
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