Bambu Lab P1S Filament Sensor Hall Switch – Replacement for P1P & P1S 3D Printers
Official Bambu Lab filament sensor hall switch replacement for P1 series printers. The hall effect sensor detects filament presence in the extruder path using magnetic detection. Replace when the printer fails to detect filament runout or triggers false filament-out pauses.
When to Replace
- False Runout Alerts – Printer pauses when filament is present
- No Detection – Printer doesn’t detect when filament runs out
- Intermittent Errors – Filament sensor errors appearing randomly
- Physical Damage – Damaged sensor or connector
Compatibility
Compatible Models:
Not compatible with X1 Series (use X1C Hall Switch instead) |
Specifications
| Sensor Type | Hall Effect Sensor |
| Function | Detects filament presence in extruder path |
Replacement guide: Bambu Lab P1 Filament Sensor Replacement Guide




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