# Z Probe Troubleshooting **URL:** \ **Category:** Uncategorized\ **Created:** [May 9, 2018, 10:57pm UTC](https://community.inventables.com/t/z-probe-troubleshooting/55236 "2018-05-09T22:57:52Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![JohnGiannaris](https://avatars.discourse-cdn.com/v4/letter/j/a3d4f5/32.png) [@JohnGiannaris](https://community.inventables.com/u/JohnGiannaris)\ **Post date:** [May 9, 2018, 10:57pm UTC](https://community.inventables.com/t/z-probe-troubleshooting/55236/1 "2018-05-09T22:57:52Z")
The first day I used this it was fine. Next day; the screw that keeps the z axis from crushing the z homing switch moved and killed my z homing switch. I replaced this easily and reset the screw. Now I’m trying to get the Z probe working and the circle is always blank in the testing screen. I’ve unplugged it; checked wiring, etc… I have the instructables fine collect for my Dewalt 611. Ideas? ---
**Author:** ![KoenDeBrabanter](https://avatars.discourse-cdn.com/v4/letter/k/54ee81/32.png) [@KoenDeBrabanter](https://community.inventables.com/u/KoenDeBrabanter)\ **Post date:** [May 10, 2018, 7:12am UTC](https://community.inventables.com/t/z-probe-troubleshooting/55236/2 "2018-05-10T07:12:50Z")
You could troubleshoot it, starting on the controller itself by unscrewing the 2 wires going to the Z-probe, and connect a jumper wire, or better a switch, instead. Start with the jumper wire connected/switch closed. When easel asks to connect the Z-probe, disconnect the wire/open the switch. When easel asks to touch the plate, connect the wire/close the switch. If this works, you know there are no issues with the controller. Once, i had quite te same issue, but the problem was that I did not completely inserted the Z-probes connector. Inside the connector on the Xcarve, there is a switch inside, which was not fully actuated. I hope this helps you a little further. ---
**Author:** ![JohnGiannaris](https://avatars.discourse-cdn.com/v4/letter/j/a3d4f5/32.png) [@JohnGiannaris](https://community.inventables.com/u/JohnGiannaris)\ **Post date:** [May 13, 2018, 3:54pm UTC](https://community.inventables.com/t/z-probe-troubleshooting/55236/3 "2018-05-13T15:54:50Z")
so is it possible that if I have the wires for each of the motors plugged into the wrong inserts on the board? When I originally calibrated the machine I noticed things were going in the wrong direction. It seems like the labels on the wires are labeled incorrectly?