I have been successfully using the Ender 5 Plus for a month now. But suddenly the printer wont go back to zero or "home" correctly. Whenever you press home or start a print it should go and hit right side, then top and finally go to zero. However right now it moves up directly from wherever it is place. What can I do to fix it? Any ideas?
Is your BL touch flashing red, or is it solid red? Flashing red means that the bed is raised up too high, there needs to be enough clearance for the measurement probe to fully extend when you start it up.
Even if it is not flashing red, try moving the print head and bed manually:
Remove your SD Card, unplug any computer hooked to the printer's USB cable
Boot UP Printer
Move Z down at least 50 mm from print head
Move Y so it is resting against the stop switch
Move X so it is resting against the stop switch
Turn it off and wait for a minute or so
Turn it back on
Tap Leveling - this will make it do the homing function
This should get you to the correct home position, but if you are still having problems, you need to re-level your printer manually and you may need to adjust the Z-offset.
The Z-offset tells tells the printer to Add or Subtract height on the Z-plane to get the nozzle close enough to the print bed that the extrusion sticks.
Let us know if this works for you, or if you found a different solution.