If the compressor is offline, and nothing has been posted about it in Discourse, you can check its front panel. If the red master switch is on but the green light is off, check the sight glass for oil. If there is oil there, then you can restart it by turning the black knob towards the vertical line to turn the compressor back on. The green light should come on and it should start pumping air.
If you don’t see oil in the sight glass, DO NOT RESTART THE COMPRESSOR. If the compressor goes off again (green light off) after restarting it earlier, and there hasn’t been a power failure, DO NOT RESTART THE COMPRESSOR. In those cases, please turn the red master switch to off, along with the black secondary switch to the right of the main panel. Then submit a problem report.
If there is a Discourse thread about the compressor being offline, DO NOT TURN THE COMPRESSOR BACK ON. If the red master switch is off, DO NOT TURN THE COMPRESSOR BACK ON.
I guess I should’ve put a red tag on the compressor explicitly, but I thought the master switch being off plus the Discourse post would deter people. But someone turned it back on when they shouldn’t have.
This is a problem because we don’t understand what is wrong now, so we don’t know if it’s going to be damaged by continuing to run it. And also because whoever turned it on didn’t turn on the second stage dehumidifier, meaning we may have been pumping water into all our compressed air lines. And now I’m having to depressurize the system and wait for it to cool off before I can work on it.