Geeetech

Hi,
New here, just built my A30 and when homing the z axis crashes the nozzle into the bed.
The switch activates (red light) but does not halt the motors.
other 2 axis/switches work as expected.

Any guidance please?

Managed to poll M119 against it and the switch seems to be return it's state.
Just not stopping the z motors

Hi,
Have you tried to check the auto leveling menu?
If you've enabled it,you need to disable it at first.

If it still doesn't work,you need to click"Default factory".
Then restart it.

I have not touched the leveling settings.
The printer is straight out of the box.
I have however done a number of factory resets on the printer to no avail.
Still the same issue.

I had this exact same problem, and it ruined my nozzle and some of the print bed right from the moment I turned it on. If I only knew it damaged the nozzle at the time, it would have saved me weeks of pulling my hair out.
This is definitely related to the auto level problem. Go into the menu and set it to MANUAL leveling. (Or turn AUTO off if you want to look at it that way.) I cannot fathom why they make auto level default from the factory when they must know by now, it doesn't work in most cases.
Also, if you purchased the auto level sensor like I did, just unhook the electrical connection.

Yes, you can get the auto level working after quite a bit of digging. There's a Youtube video I finally found that helped me get it setup. Wasn't really worth it for the time it takes the machine to auto level before each print. Just manually level at the 5 points and you should be able to print something, at least to get you started.

As it is written in the manual you have to check first the AutoLeveling (on/off).
I have done this with my Geeetech A30. In my case it was off and everything works.

Meanwhile i have the AutoLeveling. There can also be a problem with ignoring the Z-Stop, if in the Cura-GCode the wrong Home-Position is written.
For Manual Homing it is in the front and a little bit down.
For Auto-Leveling it is in the middle of the bed and Z-Stop off, because the Sensor is now checking, where the printbed is.
My first gcode was wrong (which works nice with manual leveling setting); The Z-Stop is off and the Sensor has nothing which can stop, because on the wrong home position is no heatbed to detect...
Now it works

But something is still wrong with my endcode, because i can`t start a second print, without swiching off the printer between the prints *g*
But i will find out (I am a Beginner. Startet 3D-Printing 3 Weeks ago )