Thanks for your reply. I realize that the control unit inner fascia is held in by 6 phillips screws. I've taken the whole thing out already. In fact, when you remove the 6 screws, the whole unit comes out, as the inner fascia is snap connected to the CCU. My problem is that I can't get the black plastic front plate off of the control unit. It seems as though it won't come off because of the air flow switches. How do I pull off the Air Flow Switches?? I can't get any sort of grip on them at all. The fan switches come off very easily.