Printer troubleshooting

Clogged nozzle/hotend (MK3.5/S, MK3S+, MK2.5S)

A 3D printer's hotend can get clogged. This article explains the most common causes of this issue, which are usually the same regardless of the printer type or model. We then have…

Sample G-codes

Each Original Prusa printer is shipped with a bundle of sample G-codes. These G-codes are tested and tailored specifically for your printer model and can be used to see the printer's…

SD cards and USB drives

As there are ways of remotely transferring files and starting prints, an SD card or USB flash drive is the most common and reliable way to get your files to your machine. Though…

Extruder noises

Extruder blob

Spaghetti monster

Connect Registration Failed

PrusaLink Troubleshooting

Homing error X #26304 (MK4S) #13304 (MK4) #21304 (MK3.9) #23304 (MK3.5)

Factory reset (CORE One, MK4/S, MK3.9/S, MK3.5/S, MINI/+, XL)

Bed preheat error #26201 (MK4S) #13201 (MK4) # 27201 (MK3.9S) #21201 (MK3.9) #28201 (MK3.5S) #23201 (MK3.5) #31201 (CORE One)

Homing error Y #26305 (MK4S) #13305 (MK4) #21305 (MK3.9) #23305 (MK3.5)

MMU Overcurrent #26310 (MK4S) #13310 (MK4) #21310 (MK3.9) #23310 (MK3.5)

Bed thermal runaway #26203 (MK4S) #13203 (MK4) #27203 (MK3.9S) #21203 (MK3.9) #28203 (MK3.5S) #23203 (MK3.5) #31203 (CORE One)

Bed maxtemp error #26205 (MK4S) #13205 (MK4) #27205(MK3.9S) #21205 (MK3.9) #28205 (MK3.5S) #23205 (MK3.5) #31205 (CORE One)

LED Memory Error #31529 (CORE One) #26529 (MK4S) #13529 (MK4) #27529 (MK3.9S) #21529 (MK3.9) #28529 (MK3.5S) #23529 (MK3.5)

Heaters Timeout #31817 (CORE One) #26817 (MK4S) #13817 (MK4) #27817 (MK3.9S) #21817 (MK3.9) #28817 (MK3.5S) #23817 (MK3.5) #17817 (XL) #12817 (MINI)

Fil. sensor troubleshooting #26114 (MK4S) #13114 (MK4) #27114 (MK3.9S) #21114 (MK3.9) #28114 (MK3.5S) #23114 (MK3.5)

Original Prusa MK3.5