Protocol 44.B // Diagnostic Assistant
Troubleshooting &
Error Guide
Select Fault Symptom
Extruder Heat Creep Jam
Probability Matrix: High in enclosures above 40°C
Progress: 0%
STEP 01
Inspect Hotend Cooling Fan
Verify the heat sink fan is spinning at full speed. Check for stuck filament strands or dust build-up in the fan blades.
Target Corrective Action:
Clear fan debris or replace the 4010/3010 fan if RPM is below specification.
STEP 02
Retraction Tuning
High retraction lengths (especially > 1.5mm on direct drive) pull molten filament too far up into the cold zone, where it freezes and jams.
Target Corrective Action:
Reduce retraction distance to 0.4mm - 0.8mm for direct drive.
STEP 03
Chamber Ventilation Control
When printing PLA inside a fully enclosed printer, the internal chamber temperature rises, heating the cold section of the hotend.
Target Corrective Action:
Open the enclosure door or remove the top glass lid to drop chamber temperatures below 35°C.