Original Prusa XL

Troubleshooting

Layer shifting

Layer shifting is a printing issue that causes the layers of the printed object to shift from their intended positions. It is usually associated with an abnormal movement of the…

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Extruder blob

The blob (mass of plastic accumulated around the hotend) is one of the most scary-looking printing problems you might face with your 3D printer. Removing it after it happens is…

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Poor bridging

Bridging is a term for printing layers over thin air without the use of supports. It may sound like an impossible feat, but with our printers, it’s not that difficult. Keep in…

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Layer separation and splitting FDM

Bad looking surface above supports

Watertight prints

Ghosting

Nextruder filament sensor (CORE One, CORE One L, MK4/S, MK3.9/S, XL)

Connect Registration Failed

Stuck filament detection #31101 (CORE One) #35101 (CORE One L) #26101 (MK4S) #13101 (MK4) #27101 (MK3.9S) #21101 (MK3.9) #17108 (XL)

Failing supports

PrusaLink Troubleshooting

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

Clogged hotend (XL)

Status LED explained (MK4/XL)

QR Error codes

Extruder preheat error #17202 (XL)

Connect Registration Failed #17401 (XL)

Nozzle Cleaning Failed #17834 (XL)

Filament not loading (XL)

Homing error Z #17301 (XL)

Extruder thermal runaway #17204 (XL)

Selftest failed (XL)

Puppy error #17514 (XL)

Tool offset out of bounds #17104 (XL)

Dock position out of bounds #17103 (XL)

Puppy error #17513 (XL)

Modular bed error #17255 (XL)

Extruder Mintemp error #17208 (XL)

Pin not reached #17107 (XL)

XY position invalid #17106 (XL)

No FW on USB #26604 (MK4S) #13604 (MK4) #27604 (MK3.9S) #21604 (MK3.9) #28604 (MK3.5S) #23604 (MK3.5) #31604 (CORE One)

USB not connected #31602 (CORE One) #35602 (CORE One L) #26602 (MK4S) #13602 (MK4) #27602 (MK3.9S) #21602 (MK3.9) #28602 (MK3.5S) #23602 (MK3.5) #17602 (XL) #12602 (MINI)

XY probe unstable #17105 (XL)

Puppy error #17516 (XL)

Precise Refinement Failed #31102 (CORE One) #35102 (CORE One L) #17102 (XL)

Homing error Y #31305 (CORE One) #35305 (CORE One L) #17305 (XL)

Power Panic #17321 (XL)

Modular Bed Error #17319 (XL)

Homing error X #17304 (XL)

Toolchanger error #17101 (XL)

ESP error #17505 (XL)

EXTRUDER ERROR #17536 (XL)

Modular bed error #17250 (XL)

USB flash drive not connected #17602 (XL)

Heatbreak Mintemp error #17211 (XL)

FW in internal flash corrupted #31608 (CORE One) #35608 (CORE One L) #26608 (MK4S) #13608 (MK4) #27608 (MK3.9S) #21608 (MK3.9) #28608 (MK3.5S) #23608 (MK3.5) #17608 (XL) #12608 (MINI)

Modular bed error #17257 (XL)

Unsupported firmware BBF file #17614 (XL)

Emergency stop #31510 (CORE One) #35510 (CORE One L) #26510 (MK4S) #13510 (MK4) #17510 (XL) #27510 (MK3.9S) #21510 (MK3.9) #28510 (MK3.5S) #23510 (MK3.5) #12510 (MINI)

Tangled filament

Loadcell not calibrated #17523 (XL)

Modular bed error #17303 (XL)

Puppy error #17521 (XL)

I2C Send Failed #17311 (XL)

Out of Memory #31507 (CORE One) #35507 (CORE One L) #26507 (MK4S) #13507 (MK4) #27507 (MK3.9S) #21507 (MK3.9) #28507 (MK3.5S) #23507 (MK3.5) #31507 (CORE One)

Modular bed error #17256 (XL)

Heatbreak Maxtemp error #17212 (XL)

Extruder temp not matching #17210 (XL)

No FW on USB flash drive #17604 (XL)

Puppy error #17520 (XL)

Extruder Maxtemp error #17206 (XL)

Toolchanger problem #17813 (XL multi-tool)

Loadcell tare failed #17525 (XL)

Loadcell timeout #17528 (XL)

Puppy error #17522 (XL)

Modular bed error #17252 (XL)

Selftest failed (XL multi-tool)

Modular bed error #17302 (XL)

Blue Screen of Death (BSOD)

Puppy error #17511 (XL)

Puppy error #17519 (XL)

ESP not connected #17533 (XL)

Puppy error #17512 (XL)

Invalid FW size on USB #31603 (CORE One) #35603 (CORE One L) #26603 (MK4S) #13603 (MK4) #27603 (MK3.9S) #21603 (MK3.9) #28603 (MK3.5S) #23603 (MK3.5) #17603 (XL) #12603 (MINI)

Flash erase error #31605 (CORE One) #35605 (CORE One L) #26605 (MK4S) #13605 (MK4) #27605 (MK3.9S) #21605 (MK3.9) #28605 (MK3.5S) #23605 (MK3.5) #17605 (XL) #12605 (MINI)

FW in internal flash corrupted #17608 (XL)

Loadcell measure failed #17526 (XL)

Unsupported printer version #31611 (CORE One) #35611 (CORE One L) #26611 (MK4S) #13611 (MK4) #27611 (MK3.9S) #21611 (MK3.9) #28611 (MK3.5S) #23611 (MK3.5) #17611 (XL) #12611 (MINI)

USB flash error #17613 (XL)

Firmware missing #17612 (XL)

Imposter! Fake signature #17606 (XL)

Marlin Request Timeout #17530 (XL)

ESP error #17506 (XL)

Modular bed error #17251 (XL)

USB Port Overcurrent #17306 (XL)

Emergency stop #17510 (XL)

Out of memory #17507 (XL)

Unsupported Buddy FW #17611 (XL)

USB Device Overcurrent #17307 (XL)

Loadcell tare error #17524 (XL)

ESP error #17504 (XL)

Loadcell Bad Configuration #17527 (XL)

Puppy error #17515 (XL)

Puppy error #17518 (XL)

Hash verification failed #31607 (CORE One) #35607 (CORE One L) #26607 (MK4S) #13607 (MK4) #27607 (MK3.9S) #21607 (MK3.9) #28607 (MK3.5S) #23607 (MK3.5) #17607 (XL) #12607 (MINI)

Dwarf error #17503 (XL)

Hotend Heater Overcurrent #17322

Modular bed error #17254 (XL)

Puppy error #17517 (XL)

Unsupported printer model #17610 (XL)

Modular bed error #17253 (XL)

BBF Initialization failed #17532 (XL)

Hash verification failed #17607 (XL)

I2C Send Busy #17312 (XL)

Modular bed error #17501 (XL)

BBF Allocation Failed #17531 (XL)

Flash erase error #17605 (XL)

Modular Bed Error #17320 (XL)

I2C Receive undefined #17318 (XL)

I2C Send Timeout #17313 (XL)

Invalid FW size on USB flash drive #17603 (XL)

LED Memory Error #17529 (XL)

EEPROM I2C Receive Busy #17316 (XL)

I2C Receive Timeout #17317 (XL)

Under-extrusion (Nextruder printers)

Dwarf error #17502 (XL)

I2C Receive failed #17315 (XL)

PNG Buffer Full #17508 (XL)

I2C Send Undefined #17314 (XL)

Heatbed temp not matching #17209 (XL)

Heaters Timeout #31817 (CORE One) #35817 (CORE One L) #26817 (MK4S) #13817 (MK4) #27817 (MK3.9S) #21817 (MK3.9) #28817 (MK3.5S) #23817 (MK3.5) #17817 (XL) #12817 (MINI)

Firmware x printer mismatch #31609 (CORE One) #35609 (CORE One L) #17609 (XL) #26609 (MK4S) #13609 (MK4) #27609 (MK3.9S) #21609 (MK3.9) #28609 (MK3.5S) #23609 (MK3.5) #12609 (MINI)

Filament sensor stuck #31113 (CORE One) #35113 (CORE One L) #17113 (XL) #26113 (MK4S) #13113 (MK4) #27113 (MK3.9S) #21113 (MK3.9) #28113 (MK3.5S) #23113 (MK3.5) #12113 (MINI/+)

Filament Sensors Disabled #31115 (CORE One) #35115 (CORE One L) #17115 (XL) #26115 (MK4S) #13115 (MK4) #27115 (MK3.9S) #21115 (MK3.9) #28115 (MK3.5S) #23115 (MK3.5) #12115 (MINI/+)

Homing error X #31304 (CORE One) #35304 (CORE One L) #17304 (XL)

Chamber overheating #31260 (CORE One) #35260 (CORE One L) #17260 (XL)

Chamber temperature is critical #31261 (CORE One L) #35261 (CORE One) #17261 (XL)

Print fan error #31816 (CORE One) #26816 (MK4S) #27816 (MK3.9S) #13816 (MK4) #21816 (MK3.9) #17816 (XL)

Crash recovery repeated crash #31811 (CORE One) #35811 (CORE One L) #26811 (MK4S) #13811 (MK4) #27811 (MK3.9S) #21811 (MK3.9) #28811 (MK3.5S) #23811 (MK3.5) #17811 (XL) #12811 (MINI)