The thermistor appears to be malfunctioning, ive got the thermistor plugged into the T0 2-pin port on the control board and it returns this error when trying to control the printer preventing it from being used: : Extruder switched off. MAXTEMP triggered ! Errorrinter stopped due to errors. Fix the error and use M999 to restart. (Temperature is reset. Set it after restarting) This happens in both orientations.