I am using the most recent version of marlin, which I installed onto my Anet A8 printer. For some reason the auto home is no longer working on the Z axis. When I use the auto home function the printer homes the X and Y axis, then the Z moves up but not come back down. I have reinstalled Marlin (the same version as the one I had installed before) and still the problem persists. This is not an error with the firmware as the printer was working fine even after the first installation of marlin. I have also tried just unplugging the Z axis home switch, which did not work either.
Please give me any suggestions. Thank you.