Bed leveling error after fan swap (losing my sanity)

[Yoniweb 0]

My Ultimaker S5 fan was running rough so I tackled replacing it myself. The cable for the fan was slightly thicker gage, but other than that I felt like the installation went well. However, after one successful print, I now keep getting bed leveling errors even after repeated manual leveling. I'm lost as to how to tackle this, I simply don't understand how the leveling sensor works and how my install could have messed it up. When running the sensor test the number fluctuate from 10 to 200+.

 

Related but also unrelated: are there shops in the California Bay Area that specialize in maintenance/repairs like this?

 

Yoni

[Dustin 160]

UltiMaker does not offer direct support via the community.

I would recommend contacting UltiMaker support directly.
here: https://support.ultimaker.com/s/contactsupport

With that said the following article should help troubleshoot your issue.

here: https://support.ultimaker.com/s/article/1667410781005

As you mentioned you replaced the fan, its possible this itself is your issue.

The electronics in the print head are sensitive to electrical noise.

This can be expressed by smashed cables in the print head, faulty/damaged or otherwise out of spec fans, etc.
So you cant just replace the fan with a random fan from amazon for example.

A sensor value of 223 is basically.. "off the chart" as a bad value, as max accepted is 8.
Even your value of 10 points to considerable issues.

Anything higher than an 8 points to electrical interference/noise - this is what the article helps you troubleshoot and identify.