We have a lathe with a Fanuc OT control. Coworker was in the middle of setting up on it and the dislay went weird. Said system alarm on the top left of the screen and that was it. It was also flickering a bit. Restarted the machine and it seemed to come up ok but it won't do anything. It will move the axis according to the display but nothing actually happens. (See https://youtu.be/aKZzY7l2Klg )

There is an alarm 3 in the servo parameters if it matters. https://imgur.com/a/JhSnQG2