Do you know which brand and style compressor you have ?
Before you did those repairs to the system.... did you own the car while the AC did not work ? What was the reason or condition that caused you to do those replacements ? In other words, is there a possibility that the prior compressor ran all the time, thus went kaput, and that you did not know you needed to be looking for the reason that happened.... ? As compared to this being a new problem which has only existed since the fixup was performed .... ?