Z axis switch not found

[OnefinityCNC (Onefinity Support)]

"Estopped, Switch not found" - What does this mean?

What does ‘Estopped, Switch not found’ mean? [1] 99% of the time, when users see this ‘warning’, it means that the program/gcode they are running includes an m6 (probe) command line in the code. When hitting ‘play’ to start the carve, the z axis will immediately, but slowly, move towards the wasteboard and after traveling 10mm or so the yellow warning, ‘estop, probe not found’ will pop up and everything will reset. This is a safety measure to prevent the z axis from continuously plunging in…