AIR CONDITIONING

M,Y AC RECENTLY STOPED WORKING IN MY SADONA FUSES AND RELAY ARE GOOD SYSTEM IS CHARGED LIGHTGOES ON WHEN YOU PUSH AC BUTTON COMPRESSER DOES NO INGAGE same thing a/c was working fine went home for night next day no air only hot. thought maybe a/c switch but can't find part in stores. Possibly dealership only? None of the A/C controls work. I though it might be a fuse, but the rear window defroster/heater button works. The fan controls don't respond and the A/C buttons do nothing. (2006 Sedona)