Our moarstruder tool head suddenly started to show some issues
at first during print we experienced some heat runaway warnings
but now the printer gives an “Error E! heating failed” always when heating up the extruder after the calibration.
What is odd is that heating for the filament change works well.
I also swapped out the tool head to see if this would happen with other tools too but this only happens with the moarstruder tool head.
I read that this might be an issue with the thermistor.
Please advice how we could repair this.