Hello, I am using the stock extruder for CR10S. I am sure the wire from the motherboard to extruder is functional because it works with my other Bondtech extruder, so the problem is most likely with the stock extruder itself: when I go to the printer’s menu > prepare > move axis> extruder > + x.xx the gear does not move at all no matter how high millimeter value I set. Barring that the extruder is broken, could there be a problem with the g code/is there something I can do to troubleshoot using the slicer program (Cura) or Marlin? Thanks.

The CR10S Extruder will move until the nozzle temperature reach up to 185 degree.