well i've been lurking around finding solutions for my A/C problem. at first it would on wok in the high fan setting(sometimes). so I checked the Fuses and relays under the hood, then after some research i found that the Resistor under the glove box could be the issue. I replaced it now the different fan settings work but only when it wants to. It has its own brain or something, its turns on when it want to, when the knob is at a fan setting. As i drive i can feel air through the ducts but not at the fan speed, the faster i go the more air comes in, and i can change it if i want it to the floor or at the top, or defrost.
Any clues, all relays and fuses are good, the blower motor works( tested it by direct current), and the resistor is new just replaced. Still no air comes out.