We're working on bringing an instrument back up that hasn't been used frequently. The GC/MS hardware has been working fine and we were troubleshooting a tailing issue. Then we started having issues with the autosampler tower/tray. We have not been able to perform the alignment process, even after resetting both the tower/tray. We have seen the error codes 330 and 355, as well as another X-axis error that we didn't capture the number for. Any guidance is appreciated! (Side note: Is it really so unreasonable that a list of error codes be available for the instrument users?)