Yes, Imperial is exactly right. Would it be possible that the controller piece with the 4 knobs on it is bad? Imperialcrown is correct, one knob does have the cable going to recirc and other knob has the cable going to the red/blue for temp control. These 2 cable knobs are both are working fine. And the other 2 knobs have wires going to them. One knob is for all the settings you want, feet, defrost, face, face/feet, etc, etc. And the last knob is for the fan speed. Fan speed is fine. Only one thats not working is the selector for face, defrost, feet, defrost etc. Air automatically only goes through the defrost and feet at all times. It doesnt matter where i put the selector. Face wont blow out of the vents like its supposed to. When set to face it actually blows through the feet and defrost. Now, when I unhooked the plug of wires going to the selector knob for face, feet, defrost, defrost/feet, etc, etc, it still blew only through the defrost and feet. And when I put a simple tester light in the plug going to the fan speed control, it lights right up. But, when I put the test light in the plug with the set of wires going to the selector for feet, defrost, face, face/feet/ etc, not one wire makes test light light up. Phew, thats a lot of writing that half of it you all probably didnt need to read. I just didnt want to leave anything out. I sure hope someone can understand what im trying to say. In other words, you think the 4 knob face plate needs replacing or something else?