== Troubleshooting ==
The table below describes some problems you might encounter. Some can be tackled by the observer (see column 4). If the suggested steps to be followed by an observer fail, please call a technician.
{| class="wikitable" border="1"
| Call a technician to check if the telescope and dome are in a safe state. If it is safe to do so, the lockout switch by the North pier needs to be turned to the OFF position.
| Mechanical or electronic standby.
|-
| The telescope spontaneously shut down (mirror covers closed, dome closed, telescope parked).
| The facility was shutdown by the LCU, either due to bad weather or a loss of connection to the TCS.
| Check the weather: if it's bad you must leave the telescope closed. Check the TCS: if there is a message stating that the connection has been lost, reload the page. If the weather is good, press Startup and resume observing.
| Observer
|-
| The dome didn't open on startup.