Printer showing an error you don’t understand? Type the code from the screen or the app and get a plain-language cause plus the exact fix. Covers 200+ codes for the Bambu Lab A1, P1, X1 and H2 series.
Bambu Lab Error Code Lookup (HMS)
Type the HMS or error code from your printer and learn what it means and how to fix it. Covers 260 codes from the official docs.
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Common error codes, explained
Step-by-step guides for the most frequent errors (83 and growing). Each covers the cause, the fix, and related codes.
- 0300-4000: Z Homing Failed
- 0300-4001: Nozzle Cooldown Timeout Before Homing
- 0300-4002: Auto Bed Leveling Failed
- 0300-4005: Nozzle Cooling Fan Abnormal
- 0300-4006: Nozzle Clogged
- 0300-4008: AMS Slot Switching Failure
- 0300-4009: XY Homing Failed
- 0300-400A: Resonance Frequency Identification Failed
- 0300-400C: Print Cancelled
- 0300-400D: Print Resume Failed
- 0300-400E: Motor Self-Check Failed
- 0300-8000: Print Paused Without Reason
- 0300-8001: Print Paused by User
- 0300-8002: First Layer Defects (Micro Lidar Scan)
- 0300-8003: Spaghetti Defects Detected
- 0300-8004: Filament Supply Exhausted
- 0300-8006: Build Plate Marker Not Detected
- 0300-8007: Unfinished Print After Power Loss
- 0300-8008: Nozzle Temperature Malfunction
- 0300-8009: Heated Bed Temperature Malfunction
- 0300-800A: Filament Pile-up in Waste Chute
- 0300-800B: Filament Cutter Malfunction
- 0300-800C: Stepper Motor Skipping Detected
- 0300-800D: Objects Fallen or Extrusion Failure
- 0300-800F: Door Opened
- 0300-8011: Build Plate Type Mismatch
- 0300-8014: Nozzle Covered or Build Plate Misaligned
- 0300-8016: Nozzle Wrapped with Filament
- 0300-8017: Foreign Objects on Build Plate
- 0300-8018: Chamber Temperature Malfunction
- 0300-8019: Build Plate Not Installed
- 0500-4001: Bambu Cloud Connection Failed
- 0500-4002: Invalid File Path or Name
- 0500-4003: Print File Parsing Error
- 0500-4004: Printer Already Printing
- 0500-4005: Print Blocked During Update
- 0500-4006: Insufficient Storage Space
- 0500-4008: Print Job Initialization Failure
- 0500-400B: File Download Network Error
- 0500-400C: No SD Card Detected
- 0500-4016: MicroSD Card Write-Protected
- 0500-401B: Cloud Response Invalid
- 0500-401C: Cloud Access Rejected
- 0500-401D: Cloud Access Failed, Network Interference
- 0500-401F: Authorization Timeout
- 0500-4024: Cloud Access Failed, Complex Network Issue
- 0500-402A: WiFi Router Connection Failed
- 0500-402B: Router Authentication Failed, Wrong Password
- 0500-402C: DHCP IP Assignment Failed
- 0500-402D: System Exception
- 0500-402E: Unsupported SD Card File System
- 0500-402F: MicroSD Card Sector Damaged
- 0500-8013: Print File Not Available
- 0500-C010: MicroSD Read/Write Exception
- 0700-8003: Hotend Filament Extraction Failure
- 0700-8004: AMS Filament Retraction Failure
- 0700-8006: Filament Loading into Hotend Failed
- 0700-8010: AMS Motor Overload
- 0700-8011: AMS Filament Runout
- 0702-8006: AMS Filament Feed to Toolhead Failed
- 0702-8007: AMS Filament Extrusion Failed
- 07FF-8001: AMS Filament Cut Failed
- 07FF-8002: AMS Cutter Jammed
- 07FF-8004: AMS Filament Pullback Failed
- 07FF-8005: AMS Filament Feed Out Failed
- 07FF-8007: Nozzle Filament Extrusion Verification
- 07FF-8012: AMS Filament Mapping Table Failed
- 07FF-C003: Filament Spool Holder Verification Required
- 0C00-8005: Purged Filament Accumulation Risk
- 0C00-8009: Build Plate Localization Marker Not Found
- 0C00-C003: First Layer Defects (Lidar Detected)
- 0C00-C004: Spaghetti Failure (Lidar Detected)
- 1000-C001: High Bed Temperature Warning
- 1000-C002: Carbon Fiber with Stainless Steel Nozzle Risk
- 1200-8003: AMS Filament Extraction from Extruder Failed
- 1200-8005: Filament Feed Retry Required
- 1200-8010: Spool or Filament Jam Detected
- 1200-8014: AMS Filament Location Not Found
- 1200-8016: Extruder Not Extruding Normally
- 1201-8014: AMS Filament Position Check Failed
- 1201-8015: AMS Filament Pullback with Breakage
- 12FF-4001: AMS Disabled But Filament Still Loaded
- 12FF-8013: AMS Filament Purge Timeout