I need help solving a Mystery about a Compressor failure. A friend who owns another small AC Co. asked me to Change out a Comp. on a 5 Ton, Trane Rooftop Unit. I replaced it and it ran for about a week when he called and said it wasn't working. I went back out and checked it out. I couldn't get into the building so I went on the roof and saw it running. First I felt the Heat coming off the cond. fan and it was Hot. Then I felt the Suction pipe and it was cold and sweating. I looked over at the drain and could see water draining onto the roof. By eye everything looked good. I put my gages on and the pressures seemed high. I couldn't get into the space because it was locked.... I adjusted the pressures (-1.5lb.) without checking superheat and left. The next day my friend sent me a pic of the Frozen E-Coil. He said he had to add 5lb R-22 and left it running at a 10deg superheat. About 2 days later (total aprox. 2 weeks) the Comp. fails. He calls me and says that the Comp. was wired wrong and now he has no pressures. I went out to confirm and ohmed the Comp. windings. They had perfect ratio and no windings burnt. Comp. tried to start by dropped out quickly. I got a start kit hoping that Thermal wasn't still open. It wasn't and needed 120amps to start...then dropped to about 23 amps and continued. Still no pressures. Is it possible that I wired the Comp. wrong? Note: My friend is one of the best AC Techs I know... he doesn't miss much. I think I'm getting a bad rap. LOL Is it possible for a 220, 1ph, R-22, Trane Comp. to run with CSR wires wrong? Is it possible that 2 Techs with 20+ years of experience to both miss it?