Z + or - moves down

Filament 3D Printer Technical Help Creality CR-10 / 10S
1

I dug out my CR-10 and ran some simple tests. X & Y are fine.
The Z axis moves downward whether you move it + or -.
And while it’s moving, I hit the Z limit switch and it continues moving.

Can anyone suggest a fix?

2

Check the z limit switch for operation and wiring?

3

I would try reinstalling or updating the firmware to see if that makes a difference.

4

Found it. The Z axis stop was unplugged to the board.

Thank you both.