Printer does not home anymore

[obus3d 8]

Please help me!

When homed manually and start printing, everything works fine, after printing the head moves left but not back.

When I try to home from the menu the head actually move short steps forward.

When pausing and continuing it resumes printing on completely wrong coordinates.

How on earth did this happen? Does anyone know how to solve this?

[Labern 735]

Sounds like you have a problem with you limit switch. It must think that the switch is being pressed in. Toggle the switch with your finger and listen and feel for a "click"

If it does not click then you have a faulty switch and will need replacing. If it does click you need to check the wiring, make sure it hasn't worn though or shorted somewhere. You may need to unplug it and check it with a meter to see if it giving an open / closed action when pressed.

If you download the ultimaker app there is a section for broken x / y switches under trouble shooting. Or you can look Here