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I have been successfully using the Ender 5 Plus for a month now but suddenly the printer won't 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?

The firmware version is 1.70.2 BL. I haven't changed anything in that sense since I bought it.

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  • $\begingroup$ It might be a good idea to first find out whether the endstops still work. Hook up a computer trough USB and run Pronterface or another console/terminal and send M119 to find out if the X and Y endstops still work. However, this sounds as a problem with the BLTouch sensor. Recheck all the cables and connections. $\endgroup$
    – 0scar
    Feb 15, 2021 at 8:46
  • $\begingroup$ Have you found and fixed the problem? If so, has the answer below led you to the solution? Please vote to accept the answer so this question is not bumped up once in a while and can be removed from the unanswered question list. You may even add your own solution and accept that after 48 hours! If you have not been able to address the problem please update your question. $\endgroup$
    – 0scar
    Jun 25 at 10:33

1 Answer 1

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Is your BLtouch 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:

  1. Remove your SD Card, unplug any computer hooked to the printer's USB cable

  2. Boot up printer

  3. Tap Settings

  4. Tap Move

  5. Move Z down at least 50 mm from print head

  6. Move Y so it is resting against the stop switch

  7. Move X so it is resting against the stop switch

  8. Turn it off and wait for a minute or so

  9. Turn it back on

  10. Tap Settings

  11. 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 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.

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  • $\begingroup$ This did not work. The bed is being driven into the print nozzle. Even when I adjust the z home position and level, the bed hits the nozzle. $\endgroup$ Jan 26 at 0:47

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