AC no power at compressor
 

Hello everyone. I have a 2003 F250 4x4 and am having a problem with my ac. The low and high pressure switches check out fine, the fuses are fine and the system if charged. However, there is no power at the compressor. The truck has been babied and has only 23k miles and other than a 10" lift it's stock. Please help! It's burning hot down here is S Florida.