The Z axis is stuck or the limit switch is broken - ER16

[CMakita 0]

Hello, I have a problem with the Z axis, I am using the ultimaker 3 printer. I tried to follow the recommendations given on the ultimaker.com/ER16 link without success. moreover, i can actuate the limit switch manually, and this proves that the switch is working correctly and that there is no object at the bottom of the plate blocking the descent of the plate. But when launching the printer I get the same ER / 16 error message, can someone help me?

[IRobertI 521]

If you go to System -> Maintenance -> Diagnostics -> Limit switches, does the indicator for the Z-switch get an "X" in it? And does it go away when you manually grab the platform and pull it up?

 

If not, you're either dealing with a broken switch, a bad solder joint of the wires attached to the switch itself or a bad connection to the mainboard. If you have access to a multimeter you can probe the connector for continuity and see if it gets continuity when the switch is pressed, that would verify that the switch is physically ok or not.