The Original Prusa XL is equipped with a loadcell, to detect that the nozzle is close enough to the steel sheet for printing, and to avoid damage that would be caused by the nozzle digging into the steel sheet.
The loadcell sets itself a reference, called tare. In case there is an issue during this procedure, the printer will show the message: "Setting the tare failed. Check the loadcell wiring and connection."
Error name: Loadcell tare failed
Error code: #17525
Open the dwarf-cover-door to access the Dwarf board. The loadcell connector is on the bottom left, check it for any loose cable, disconnected cable, or visible damage.
Navigate to LCD Menu - Control - Calibration and test - Loadcell test to restart the loadcell calibration.
During the test, you will be asked to tap the nozzle at a specific time, and a progress bar on top of the screen will be filled. If the progress bar is not filled or the printer shows any errors, please contact our customer support.