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                  3. Maintenance warning #31117 (CORE One) #26117 (MK4S) #13117 (MK4) #27117 (MK3.9S) #21117 (MK3.9) #28117 (MK3.5S) #23117 (MK3.5)
                   

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                  Maintenance warning

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

                  Relevant for

                  CORE One family
                  MK4 family
                  MMU family
                  MK3.5 family
                  MK3.9 family
                  3 comments
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                  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. 

                  Was this article helpful?
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                  2 comments

                  Log in  to post a comment
                  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.
                  Reply
                  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.
                  Reply
                  Alessandro Pantaleo
                  •
                  Hi! Thanks for the catch, and sorry for the late response. The link is now fixed. :)
                  Reply

                  Topics

                  • Using the printer
                    • Printer maintenance
                      • How to replace the main cable (CORE One/+)
                      • How to replace a hotend heatsink (MK4S / MK3.9S)
                      • Changing or replacing the Prusa Nozzle
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                      • Regular printer maintenance (CORE One/+)
                      • Maintenance warning #31117 (CORE One) #26117 (MK4S) #13117 (MK4) #27117 (MK3.9S) #21117 (MK3.9) #28117 (MK3.5S) #23117 (MK3.5)
                      • Maintenance failure warning #28116 (MK3.5S) #23116 (MK3.5)
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                      • How to pack the Prusa CORE One for return - Custom Packing material
                      • How to replace the xBuddy board (CORE One)
                      • Packing the MK4/S + MMU3 bundle for return - original packaging
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                      • MK3 Series Hotend Guide
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