# Creality Cr10-S Pro Z axis only goes up and not down **URL:** \ **Category:** Support\ **Created:** [6 December 2020 23:24 UTC](https://forum.core-electronics.com.au/t/creality-cr10-s-pro-z-axis-only-goes-up-and-not-down/8925 "2020-12-06T23:24:05Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Kian129606](https://avatars.discourse-cdn.com/v4/letter/k/7c8e57/32.png) [@Kian129606](https://forum.core-electronics.com.au/u/Kian129606)\ **Post date:** [6 December 2020 23:24 UTC](https://forum.core-electronics.com.au/t/creality-cr10-s-pro-z-axis-only-goes-up-and-not-down/8925/1 "2020-12-06T23:24:05Z")
Hi, I’m running a cr10-s pro v2 with tiny machines firmware, up until recently was working like a charm… no issues at all. And then intermittently some prints wouldn’t even start and the LCD would just show the print as printed and nothing had even started. Usually after a machine reboot this would clear and it would work fine. Today a reboot would not clear it… and now after trying to re-level and get a new z offset the machine won’t even set a z height at all. It just keeps going higher on the gantry and won’t lower through any means from the LCD. I can lower manually only. I have reflashed the firmware, reset the EFPROM, run the ‘reset settings.gcode’ using the ‘move’ function I can raise and sometimes lower the gantry upon a fresh reboot… but after that it won’t work. the z height shows at 0 even when the gantry is quite high. If I raise it using ‘move’ it will show 5 10 20 mm raise… but when I press -Z using move…the numbers decrease to 0 but the print head does not move down. I know the motor works because when first booted up I can raise to 10 and it will lower to 0 but only once or twice then it stops. spent the better part of my morning trying to fix this… any and all help would be fantastic ! thank you Kian ---
**Author:** ![Liam120347](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/liam120347/32/5003_2.png) [@Liam120347](https://forum.core-electronics.com.au/u/Liam120347)\ **Post date:** [7 December 2020 21:55 UTC](https://forum.core-electronics.com.au/t/creality-cr10-s-pro-z-axis-only-goes-up-and-not-down/8925/2 "2020-12-07T21:55:26Z")
Hi Kian, Sounds like the endstop’s aren’t being detected. It is quite possible that a wire has disconnected from the mainboard, checking the connections should remedy this. To verify I would download some software that allows you to send G-Code directly to your printer (I use Pronterface). Send an `M119` command, now work around the printer pushing the buttons and sending the `M119` command, to ensure that the end stops are being recognised. Let me know how you go! Liam. ---
**Author:** ![Roger259181](https://avatars.discourse-cdn.com/v4/letter/r/67e7ee/32.png) [@Roger259181](https://forum.core-electronics.com.au/u/Roger259181)\ **Post date:** [20 October 2023 11:30 UTC](https://forum.core-electronics.com.au/t/creality-cr10-s-pro-z-axis-only-goes-up-and-not-down/8925/3 "2023-10-20T11:30:02Z")
hi I have a creality cr10 doing the same thing… How did you sort it in the end. Regards Roger (UK) ---
**Author:** ![Liam](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/liam/32/3562_2.png) [@Liam](https://forum.core-electronics.com.au/u/Liam)\ **Post date:** [24 October 2023 00:03 UTC](https://forum.core-electronics.com.au/t/creality-cr10-s-pro-z-axis-only-goes-up-and-not-down/8925/4 "2023-10-24T00:03:20Z")
Hi Roger! Using the commands @Liam120347 mentioned before are you able to detect the end stops and checking the wiring? Hopefully @Kian129606 sees this post to update you. Liam ---
**Author:** ![Matthew327680](https://avatars.discourse-cdn.com/v4/letter/m/7feea3/32.png) [@Matthew327680](https://forum.core-electronics.com.au/u/Matthew327680)\ **Post date:** [13 August 2026 04:25 UTC](https://forum.core-electronics.com.au/t/creality-cr10-s-pro-z-axis-only-goes-up-and-not-down/8925/5 "2026-08-13T04:25:06Z")
i believe you have a bent probe rod if you have a cr touch it may have gotten damaged some how i have seen it before up no down ---
**Author:** ![Jane](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/jane/32/12622_2.png) [@Jane](https://forum.core-electronics.com.au/u/Jane)\ **Post date:** [14 August 2026 04:01 UTC](https://forum.core-electronics.com.au/t/creality-cr10-s-pro-z-axis-only-goes-up-and-not-down/8925/6 "2026-08-14T04:01:25Z")
Hey @Matthew327680 and welcome to the forum, glad to have you here. Thank you for sharing your troubleshooting experience with the product. Hopefully it helps someone else along the way.