Bambu Lab A1 Filament Sensor Base (FAC055) – Replacement for A1 Series
Genuine Bambu Lab A1 Filament Sensor Base (FAC055) replacement. Houses the filament detection sensor for runout detection.
When to Replace
- Detection Failures – Filament not being detected
- False Runouts – Sensor triggering incorrectly
- Physical Damage – Cracked or broken housing
- Sensor Errors – Consistent filament sensor errors
Compatibility
Compatible Printers:
Note: P1/X1 series use different sensor components. |
Specifications
| Bambu Part Number | FAC055 |
| Function | Sensor base/housing for A1/A1 Mini filament runout detection. |
Replacement guide: Bambu Lab A1 Extruder Maintenance Guide








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