XYZ calibration point not found screen illuminating.
I recently purchased a mk3s+ machine. Going through the setup wizard and when I get to the xyz calibration stage, printer says no. First two points calibrates perfectly then after the second one finishes the screen illuminates without any form of text, then the printhead proceeds to move to the back left of the bed, unlike the normal third point in the back right. It then takes a little nap with the screen lights still turned on, presumably it's scared of the dark. After about two minutes the printhead suddenly wakes up and decides to start hopping up and down like a candy fed toddler for another couple of minutes. This is followed with the xyz calibration failed point not found message.
Another point of note, the controller dial is very temperamental, not switching between menu options as accurately in transition as other machines.
Can anyone help me diagnose the source of the calibration/display controller failure and how to repair the machine?
RE: XYZ calibration point not found screen illuminating.
Also every time I try to: Calibrate z/mesh bed leveling/first layer cal.I get the error message: MINTEMP BED fixed please restart.
When I try to print I get the message: Some problem encountered. Z-leveling enforced.