Ender 5 + Extruder just "pulses"and wont feed filament

Had a problem for a couple of weeks. Have an Ender 5 plus, with creality direct drive extruder fitted. running the Tinymachines software / firmware.

When I’m testing using the refuel mode, my extruder just seems to “pulse”—you can feel it with your fingers. It won’t feed or retract.

I plugged in the old extruder (same result) and checked the wiring as best as I could, and couldn’t find any faults.

I have changed the cables (extension ones) - only cable I have not replaced is the one from the main board out.


Any ideas?