Y - Axis Failed Self Test: Wrong Y-Axis Servo Mount (solved)
I always got a error on the Y-Axis self test on my circa 2021 Mk3S+ but I had managed to get the printer to work just fine. After several years and many hundreds of prints I finally figured out wat was causing the issue. It appears that the wrong Y-Axis servo mount was shipped with my original order. The one that I've been using this whole time looks like this:
This part looked noticeably different from the one depicted in the assembly manual, and has a protrusion which was apparently stopping the Y - Axis short and causing an error message, so I printed a new Y-Axis servo mount from the Prusa parts library and the issue was solved! I doubt that this issue effected that many users but it's aways helpful to go back to the assembly manual to make sure things on your printer look as they should.