Have a 02 Blazer ls and somehow the A/C inline diode blew went to radio shack picked up a new one put it in and nothin tested the power and the ground and no power goin to the compressor, (A/C is full) if I run straight power from battery compressor kicks on but nothin if i put the diode in or bypass it. Checked the relays and fuses all good has anyone ever had this issue and what can I do to fix it

 

did you use something to test the fuse or did you just look at it? try putting a different fuse in. sometimes when they blow you cant tell just by looking at them.

 

Bad pressure switch on the accumulator?