Don, maybe I explained it wrong. The new starter I installed did have the B phase wire breaking through the N/O overload contact, and before I knew exactly where two wires that were breaking through the pressure switches, I had connected them to the overload contacts also. I did this because the other existing starter had it's two wires breaking through these contacts. What I didn't notice on the existing starter was that the B phase wire that was feeding 1 side of the coil had been removed from the overload contacts and had been wired direct to the coil. After blowing 2 fuses on the starter I was working on, I traced the two wires that were breaking through the pressure switches and found out they were attached to the neutral of a 110volt circuit that was feeding some more small relays. So since I had these wires under the same terminals on the overload contacts as the B phase going to the coil, it was shorting out immediately. I think I need to get another set of the auxillary contacts and install them just for the pressure switch wires, so I can hook the overload back up the way it was intended to be. To do it right I probably need to do the existing starter the same way since they bypassed the overload also. Hope this makes sense. At this point I'm not sure what the reasoning is behind putting the pressure switch wires under the N/0 contacts anyway. Why not just wirenut them together. The way it is now, if I'm understanding it right, if the overload trips out on one of the starters, the other compressor want run, because the circuit for the pressure switch has been broken. Actually I know this because when trying to find the short I had the wires off the terminals and separated, and the other compressor wouldn't come on until I connected the two wires. Hope this is not too confusing. Steve