Maintenance warning #31117 (CORE One) #26117 (MK4S) #13117…

What happened?

The Prusa CORE One, and the Original Prusa MK4/S, MK3.9/S, MK3.5/S can be equipped with an MMU3 upgrade kit. Having the MMU3 upgrade kit installed significantly increases the number of loads and unloads.

After a set number of loads and unloads, the printer shows the message "Maintenance Reminder. Filament changes have reached main-plate lifespan/have reached 30k. Inspect the part and ensure you have a spare plate available".

Error name: Maintenace warning

Error code: #31117 (CORE One) #26117 (MK4S) #13117 (MK4) #27117 (MK3.9S) #21117 (MK3.9) #28117 (MK3.5S) #23117 (MK3.5)

How to fix it?

Follow the MMU3 regular maintenance guidelines, in particular the steps related to the Nextruder main plate.

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2 comments

Samael

•

It would be helpful to include a reference to the main plate, what it looks like, where it is in the assembly manual, and a link to buy a new one or to the STL file.

tnxgam3rx

•

The link to this page leads to an Admin page saying "You are not authorized", can we get that updated to the correct guide? I believe the link should be https://help.prusa3d.com/article/mmu3-regular-maintenance_682693#extruder-parts but I may be wrong.

Alessandro Pantaleo

•

Hi! Thanks for the catch, and sorry for the late response. The link is now fixed. :)