<p>I have found an answer. So dumb‍♂️‍♂️. It need to heat up nozzle before use extrude or retract command</p>

CC BY-SA 4.0
2020-04-23T13:49:44.673Z
This means that you have `#define PREVENT_COLD_EXTRUSION` and something like `#define EXTRUDE_MINTEMP 170` enabled in your configuration file (which is a good thing!).
0scar
CC BY-SA 4.0
2020-04-23T13:58:51.713Z
Yes, I have this in my configuration file when I update new Marlin firmware but I forgot it
DrPortgas
CC BY-SA 4.0
2020-04-23T14:01:32.100Z
Glad you found the solution yourself and posted this! Happy printing!
0scar
CC BY-SA 4.0
2020-04-23T14:10:15.367Z
To be honest, I've had a similar experience once :-)  But somehow, your question did not trigger my memory. Maybe because you don't mention temperatures; people assume that after the problem you tried to print, but instead you tried to extrude through the display or an attached print application over USB. If this had been added, people may have helped you sooner. If you [edit] the question to include that, you may receive upvotes to your question! :-)
0scar
CC BY-SA 4.0
2020-04-23T14:18:37.537Z
Oh i see. Thanks for your suggestion. I will try to edit  my question more precise:))
DrPortgas
CC BY-SA 4.0
2020-04-23T11:46:44.427Z
2020-04-23T11:46:44.427Z
DrPortgas
<p>When you pulled the filament out of the extruder you most likely induced a voltage back into the stepper driver which fried it.</p>

CC BY-SA 4.0
2020-04-22T14:12:10.273Z
But when i checked the motor, it still worked
DrPortgas
CC BY-SA 4.0
2020-04-22T14:23:51.450Z
Does the stepper driver what was attached to that motor still work?
user77232
CC BY-SA 4.0
2020-04-22T14:28:39.667Z
Yes it stil work. I had changed it to work as x axis and it worked
DrPortgas
CC BY-SA 4.0
2020-04-22T15:24:50.880Z
You tried the motor on another stepper driver, but it still doesn't work? If not do you have a way of shorting the motor leads together? If so then do it and try turning the motor by hand. It should give much more resistance to turning when the leads are shorted than when they are not.
user77232
CC BY-SA 4.0
2020-04-22T15:35:48.410Z
I tried to use another stepper driver from x axis on E0 but it not working. So i changed ramps
DrPortgas
CC BY-SA 4.0
2020-04-22T15:36:36.543Z
I already ordered a new driver and will try it tormorrow
DrPortgas
CC BY-SA 4.0
2020-04-22T15:37:19.687Z
I will try turning by hand and see it hard to turn or not.
DrPortgas
CC BY-SA 4.0
2020-04-22T14:10:25.863Z
2020-04-22T14:10:25.863Z
user77232
<p>Before it stopped working, the stepper motor worked very well and didn't show any problem. I experienced this after I fixed a filament problem. The filament got stuck soI retracted to pull the filament out of the heat nozzle. But when I finished this, the extruder didn't work anymore...</p>

<p>I restarted the system but it didn't work. All the motors work fine, even the extruder motor. The A4988 driver has the right voltage at 1.0&nbsp;-&nbsp;1.2&nbsp;V. I have already replaced my RAMPS shield and AtMega board, but it still does not work! I changed the extruder motor to another axis port and it worked good. The voltage input is stable at 11.2&nbsp;V</p>

<p>I can't figure out why the extruder motor is not working for the extruder port?</p>

<extruder><motor>
Why did my extruder motor stopped working?
DrPortgas
# Why did my extruder motor stopped working?

(Asked by: username_0 on 2020-04-22)

Before it stopped working, the stepper motor worked very well and didn't show any problem. I experienced this after I fixed a filament problem. The filament got stuck soI retracted to pull the filament out of the heat nozzle. But when I finished this, the extruder didn't work anymore...

I restarted the system but it didn't work. All the motors work fine, even the extruder motor. The A4988 driver has the right voltage at 1.0 - 1.2 V. I have already replaced my RAMPS shield and AtMega board, but it still does not work! I changed the extruder motor to another axis port and it worked good. The voltage input is stable at 11.2 V

I can't figure out why the extruder motor is not working for the extruder port?

**Tags:** extruder, motor

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## 2 answers

### Answer by username_0 on 2020-04-23. Score: 1

I have found an answer. So dumb‍♂️‍♂️. It need to heat up nozzle before use extrude or retract command

> **Comments:**
> **username_1**: This means that you have `#define PREVENT_COLD_EXTRUSION` and something like `#define EXTRUDE_MINTEMP 170` enabled in your configuration file (which is a good thing!).  
> **username_0**: Yes, I have this in my configuration file when I update new Marlin firmware but I forgot it  
> **username_1**: Glad you found the solution yourself and posted this! Happy printing!  
> **username_1**: To be honest, I've had a similar experience once :-)  But somehow, your question did not trigger my memory. Maybe because you don't mention temperatures; people assume that after the problem you tried to print, but instead you tried to extrude through the display or an attached print application over USB. If this had been added, people may have helped you sooner. If you [edit] the question to include that, you may receive upvotes to your question! :-)  
> **username_0**: Oh i see. Thanks for your suggestion. I will try to edit  my question more precise:))  

---

### Answer by username_2 on 2020-04-22. Score: 0

When you pulled the filament out of the extruder you most likely induced a voltage back into the stepper driver which fried it.

> **Comments:**
> **username_0**: But when i checked the motor, it still worked  
> **username_2**: Does the stepper driver what was attached to that motor still work?  
> **username_0**: Yes it stil work. I had changed it to work as x axis and it worked  
> **username_2**: You tried the motor on another stepper driver, but it still doesn't work? If not do you have a way of shorting the motor leads together? If so then do it and try turning the motor by hand. It should give much more resistance to turning when the leads are shorted than when they are not.  
> **username_0**: I tried to use another stepper driver from x axis on E0 but it not working. So i changed ramps  
> **username_0**: I already ordered a new driver and will try it tormorrow  
> **username_0**: I will try turning by hand and see it hard to turn or not.  

---

