This page contains the necessary information for the troubleshooting of the telescopes, their subsystems and the mains electricity. Consulting this page -and with the support astronomer- before writing a bunch of emails may save you -and the support astronomer- considerable amount of time and prevent loss of hair. We (the support astronomers and the engineering/maintenance staff) try to do our best in order to keep these pages up-to-date. So, if you cannot find something, please do feel free to either contact us and/or update these pages accordingly.