I found that the pollen filter was blocked up on mine,i removed the plastic panel under the glovebox and then removed the glove box to get access to it,i also found the cover over the blower fan had lifted out of the way as well as that's on a motor with an arm and i found that the ball on the lid had been glued on,so i just pulled the blower fan cover down and screwed it in place,after removing the pollen filter first.