K2 extruder motor not working anymore

[shirgall]

I put my own journey here. Replacing the motor didn’t fix it. Replacing the hotend circuit board made it at least make noises.

Persistent CM2784 going crazy after three weeks of trying things that fail

I had an issue that started with extrusion just stopping mid-print, so I replaced the extrusion stepper motor and I have nothing but a series of problems ever since. after replacing the motor, trying an extrusion test did nothing, no movement tried replacing the cover and the gears first, nothing replaced all the PTFE in case it was dragging too much, nothing replaced the hot end circuit board, now at least the motor clunks but I still get a CM2784 So I replaced the entire extruder. The new on…