Printer: Monoprice Maker Select V2 3D Printer

Problem: Extruder not working

History: My extruder was clogged and I didn't realize it at first and I opened the extruder and pulled out the stuck piece but later I realized it still was not working. When I put pressure on it the motor rotates and the filament comes out but does not work by it self.

Try 1: Thought something was wrong with the gears so I reseated them, Didn't work.

Try 2: Thought the extruder motor broke, so I replace the NEMA 17 motor, Didn't work.

Try 3: Plugged the motor into the x-axis plug the motor works as shown here - https://photos.app.goo.gl/kY4okR4oqkYSyzhN8

This is how the motor behaves when pluged into the [original] extruder plug- https://photos.app.goo.gl/QPo7RNeB6AFi6KsM6

Any help is appreciated, Thank you :)

  • $\begingroup$ Welcome to 3D Printing.SE! Did you try a different cable on extruder replacing the current one? $\endgroup$
    – 0scar
    Dec 19, 2019 at 19:11
  • $\begingroup$ Have you looked into this question? $\endgroup$
    – 0scar
    Dec 19, 2019 at 19:13
  • $\begingroup$ @0scar Thank you for your reply, I checked the cable with my multimeter all the wires are working as intended. My only thinking is the the board some how is damaged. Should I order a new board? $\endgroup$
    – Grummpyro
    Dec 19, 2019 at 20:51
  • $\begingroup$ I also tried increasing the voltage too the nema motor as suggested in the other thread that also didnt fix the issue $\endgroup$
    – Grummpyro
    Dec 19, 2019 at 20:53
  • $\begingroup$ My second guess was also a fried board... $\endgroup$
    – 0scar
    Dec 19, 2019 at 23:52

1 Answer 1


It was the stepper driver, Replacing the motherboard fixed the issue.

  • 1
    $\begingroup$ Many thanks for answering your own question! Glad to see you got it fixed, happy printing! $\endgroup$
    – 0scar
    Jan 20, 2020 at 7:57

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