Over time, it is not uncommon for the blower motor and regulator to wear out, leaving you with a non-functional HVAC system. In this article, I'll go over the steps involved with replacing the fan motor and regulator yourself.
Keep in mind that replacing the motor and regulator requires you to remove the glovebox beforehand. I also recommend disconnecting the battery before removing both items. See our articles on Battery Replacement and Glovebox Removal for more information.
Removing the HVAC blower motor is pretty easy and should not take more than an hour once the glovebox is removed. In this picture, you can see the three T25 Torx screws (green arrows) that secure the motor in the fan housing. Loosen and remove the three screws to remove the fan. Also take mote of the blower motor regulator directly to the left of the fan (purple arrow).