# Z axis port completely not working

**URL:** <https://forum.snapmaker.com/t/z-axis-port-completely-not-working/16355>\
**Category:** Snapmaker 2.0 (3-in-1)\
**Created:** [February 27, 2021, 4:59am UTC](https://forum.snapmaker.com/t/z-axis-port-completely-not-working/16355 "2021-02-27T04:59:17Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![staciessj](https://avatars.discourse-cdn.com/v4/letter/s/278dde/32.png) [@staciessj](https://forum.snapmaker.com/u/staciessj)\
**Post date:** [February 27, 2021, 4:59am UTC](https://forum.snapmaker.com/t/z-axis-port-completely-not-working/16355/1 "2021-02-27T04:59:17Z")

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After a few weeks of having my machine and doing many 3D prints I encountered an issue with the Z axis not moving up/down. After doing some troubleshooting tests (switching the Z & X cables/ports on the controller) It was determined by support that the Z axis port had “gone bad” and they sent a new controller module. Great! It worked for a quite a few prints and then mid-print the Z axis failed to move up/down. Same tests pointed to same problem!!! Support said that I must have unplugged the cord with out turning machine off…it was mid-print so I know that wasn’t the problem. A couple other owners suggested a problem with excess grease in the limiter switches so I suggested that to support and they sent pictures of how to open the end of the linear modules to clear the excess. Did NOT help. I had to pay the shipping for the 2nd replacement controller which arrived today…still not working. Please help me troubleshoot.

When I switch cables/ports then the touchscreen allows me to move the Z axis with the X commands; so I know it’s not the cables?

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**Author:** ![xchrisd](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/xchrisd/32/1503_2.png) [@xchrisd](https://forum.snapmaker.com/u/xchrisd)\
**Post date:** [February 27, 2021, 8:45am UTC](https://forum.snapmaker.com/t/z-axis-port-completely-not-working/16355/2 "2021-02-27T08:45:12Z")

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Conclusion of your post:

Your Z-Axis doesn´t work, even not with a new controller, on the Z-axis port.  
But they work on the x-axis port?

Weird.

What happens if you plug the Y-axis to the Z-axis?  
Try to switch the conversion module between y and z.  
Try to unplug/replug axis by axis to see when the issue occurs.  
My guessing is that the conversion modules have to be switched, but this makes not so much sense right now 😉

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**Author:** ![roymar2](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/roymar2/32/10582_2.png) [@roymar2](https://forum.snapmaker.com/u/roymar2)\
**Post date:** [November 5, 2021, 8:14pm UTC](https://forum.snapmaker.com/t/z-axis-port-completely-not-working/16355/3 "2021-11-05T20:14:26Z")

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I have the same problem. What is the best fix? if you found one.

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**Author:** ![kellerbaum](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/kellerbaum/32/3732_2.png) [@kellerbaum](https://forum.snapmaker.com/u/kellerbaum)\
**Post date:** [March 13, 2022, 8:04pm UTC](https://forum.snapmaker.com/t/z-axis-port-completely-not-working/16355/4 "2022-03-13T20:04:47Z")

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Same issue. Is there any resolution to this? Per support I have tried resetting, unplugging and reattaching etc. M1999 log still shows z axis not communicating.