Troubleshooting

Stringing and oozing

Stringing or oozing, also known as "hairy prints", is the name given for when small strings of filament are left on a printed model. This usually happens when the filament keeps…

First layer issues

This is by far the most common 3D printing problem, and probably the first one you may encounter. The first layer is the essential one because it is the base of the printed object.…

The Benchy hull line

The 3DBenchy is a 3D model designed by CreativeTools specifically for testing and benchmarking 3D printers. And everyone wants to know, how to print a perfect Benchy. Ever since…

Sample G-codes

Layer shifting

SD cards and USB drives

Extruder blob

Warping

Poor bridging

Clogged hotend (MK4)

Layer separation and splitting FDM

Bad looking surface above supports

Watertight prints

Ghosting

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

Spaghetti monster

Connect Registration Failed

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

Failing supports

PrusaLink Troubleshooting

Connect Registration Failed #26401 (MK4S) #13401 (MK4) #27401 (MK3.9S) #21401 (MK3.9) #28401 (MK3.5S) #23401 (MK3.5) #31401 (CORE One)

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

Heatbed Port Overcurrent #26309 (MK4S) #13309 (MK4) #27309 (MK3.9S) #21309 (MK3.9) #28309 (MK3.5S) #23309 (MK3.5) #31309 (CORE One)

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

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

Heatbreak MAXTEMP Error #26212 (MK4S) #13212 (MK4) #27212 (MK3.9S) #21212 (MK3.9) #31212 (CORE One)

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

Loadcell Bad Configuration #31527 (CORE One) #26527 (MK4S) #13527 (MK4) #27527 (MK3.9S) #21527 (MK3.9)

Emergency stop #26510 (MK4S) #13510 (MK4) #27510 (MK3.9S) #21510 (MK3.9) #28510 (MK3.5S) #23510 (MK3.5) #31510 (CORE One)

Marlin Request Timeout #26530 (MK4S) #13530 (MK4) #27530 (MK3.9S) #21530 (MK3.9) #28530 (MK3.5S) #23530 (MK3.5) #31530 (CORE One)

Heatbreak MINTEMP Error #26211 (MK4S) #13211 (MK4) #27211 (MK3.9S) #21211 (MK3.9)

Tangled filament

Hotend maxtemp error #26206 (MK4S) #13206 (MK4) # 27206 (MK3.9S) #21206 (MK3.9) #28206 (MK3.5S) #23206 (MK3.5) #31206 (CORE One)

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

BBF Initialization Failed #26532 (MK4S) #13532 (MK4) #27532 (MK3.9S) #21532 (MK3.9) #28532 (MK3.5S) #23532 (MK3.5) #31532 (CORE One)

File system error #26613 (MK4S) #13613 (MK4) #27613 (MK3.9S) #21613 (MK3.9) #28613 (MK3.5S) #23613 (MK3.5) #31613 (CORE One)

No FW in internal flash #26612 (MK4S) #13612 (MK4) #27612 (MK3.9S) #21612 (MK3.9) #28612 (MK3.5S) #23612 (MK3.5) #31612 (CORE One)

USB Port overcurrent #26306 (MK4S) #13306 (MK4) #27306 (MK3.9S) #21306 (MK3.9) #28306 (MK3.5S) #23306 (MK3.5) #31306 (CORE One)

Signature verification failed #26606 (MK4S) #13606 (MK4) #27606 (MK3.9S) #21606 (MK3.9) #28606 (MK3.5S) #23606 (MK3.5) #31606 (CORE One)

Loadcell Tare Error #31524 (CORE One) #26524 (MK4S) #13524 (MK4) #27524 (MK3.9S) #21524 (MK3.9)

Blue Screen of Death (BSOD)

USB Device Overcurrent #26307 (MK4S) #13307 (MK4) #27307 (Mk3.9S) #21307 (MK3.9) #28307 (MK3.5S) #23307 (MK3.5) #31307 (CORE One)

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

BBF Allocation Failed #26531 (MK4S) #13531 (MK4) #27531 (MK3.9S) #21531 (MK3.9) #28531 (MK3.5S) #23531 (MK3.5) #31531 (CORE One)

Flash erase error #26605 (MK4S) #13605 (MK4) #27605 (MK3.9S) #21605 (MK3.9) #28605 (MK305S) #23605 (MK3.5) #31605 (CORE One)

Loadcell Tare Failed #31525 (CORE One) #26525 (MK4S) #13525 (MK4) #27525 (MK3.9S) #21525 (MK3.9)

Unsupported printer version #26611 (MK4S) #13611 (MK4) #27611 (MK3.9S) #21611 (MK3.9) #28611 (MK3.5S) #23611 (MK3.5) #31611 (CORE One)

ESP Error #26506 (MK4S) #13506 (MK4) #27506 (MK3.9S) #21506 (MK3.9) #28506 (MK3.5S) #23506 (MK3.5) #31506 (CORE One)

ESP Error #26505 (MK4S) #13505 (MK4) #27505 (MK3.9S) #21505 (MK3.9) #28505 (MK3.9S) #23505 (MK3.5) #31505 (CORE One)

Unsupported BBF version #26614 (MK4S) #13614 (MK4) #27614 (MK3.9S) #21614 (MK3.9) #28614 (MK3.5S) #23614 (MK3.5) #31614 (CORE One)

Unsupported printer type #26610 (MK4S) #13610 (MK4) #27610 (MK3.9S) #21610 (MK3.9) #28610 (MK3.5S) #23610 (MK3.5) #31610 (CORE One)

Loadcell troubleshooting

PNG Buffer Full #26508 (MK4S) #13508 (MK4) #27508 (MK3.9S) #21508 (MK3.9) #28508 (MK3.5S) #23508 (MK3.5) #31508 (CORE One)

EEPROM I2C Receive Busy #26316 (MK4S) #13316 (MK4) #21316 (MK3.9) #23316 (MK3.5)

Hash verification failed #26607 (MK4S) #13607 (MK4) #27607 (MK3.9S) #21607 (MK3.9) #28607 (MK3.5S) #23607 (MK3.5) #31607 (CORE One)

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

Heatbed temp not matching #26209 (MK4S) #13209 (MK4) #27209 (MK3.9S) #21209 (MK3.9) #28209 (MK3.5S) #23209 (MK3.5) #31209 (CORE One)

Connect Registration Failed #21401 (MK3.9)

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)

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

ESP not connected #26533 (MK4S) #13533 (MK4) #27533 (MK3.9S) #21533 (MK3.9) #28533 (MK3.5S) #23533 (MK3.5) #31533 (CORE One)

Unknown file system #26703 (MK4S) #13703 (MK4) #27703 (MK3.9S) #21703 (MK3.9) #31703 (CORE One)

Original Prusa MK3.9