Looking for help from someone who has actually fixed this issue.  
Printer: Bambu H2S  
Nozzle: 0.4 mm  
Error:  
**HMS\_0300-0900-0002-0001 - Extrusion Motor Overloaded**  
Symptoms:  
Extruder starts clicking.  
Sometimes the error occurs during filament loading.  
Sometimes it occurs halfway through a print.  
Issue is intermittent.  
Filament reaches the hotend.  
Printer was working perfectly before this started.  
What I’ve already tried:  
Full calibration.  
Swapped nozzles.  
Let the hotend heat soak.  
Opened the extruder.  
Cleaned the extruder gears.  
Inspected the gears for damage.  
Followed the Bambu Wiki troubleshooting steps.  
Followed AI troubleshooting recommendations.  
Gears rotate by hand and do not appear damaged.  
I also found some brown/sparkly grit-like residue around the gears, but no obvious broken gear teeth.  
At this point I’m looking for someone who has had this exact HMS code and found the actual root cause.  
What fixed it?  
Extruder assembly replacement?  
Hidden filament fragment?  
Hotend/heat break issue?  
Feed path issue?  
Something else?  
Any confirmed fixes would be appreciated.

Bambu H2S - HMS_0300-0900-0002-0001 Extrusion Motor Overloaded (Intermittent)