- 3D printers
- 3D printer
0300-0D00-0002-0001
Bambu Lab 0300-0D00-0002-0001 on a 3D printer: homing abnormal
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Medium
Quick answer
Bambu Lab HMS 0300-0D00-0002-0001 means bed homing was not reliable: there may be a bulge on the plate or filament left on the nozzle tip. With the nozzle cold, check the plate, clean the tip and run homing again.
Safety first
Stop and check this first
- Bambu Lab stresses that the nozzle must be fully cooled before cleaning it, to avoid burns.
Safe checks you can perform
- Bulges on the plate
- Clean the nozzle tip when cold
- Hotend screws and new homing
Leave these tasks to a qualified professional
- Do not attempt this professional task: New build plate surface
- Do not attempt this professional task: Support review with a homing video
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
New build plate surface
What they doIf the plate has a bulge, Bambu Lab considers replacing the build plate surface the best fix.
They must show youthe bulge under low angle light.
In writingthe plate replaced and a correct homing afterwards.
Support review with a homing video
What they doIf plate, tip and screws are fine and the alert returns, support reviews the homing video and the printer data.
They must show youwhat they rule out in the video.
In writingticket number and diagnosis.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Bulges on the plate
- Who:
- you.
- How:
- light the plate from the front, bring your eyes close to the surface and look for bulges on the plate and the bed, as Bambu Lab shows.
- Result that matters:
- whether there is any bulge.
- If there is one:
- the best fix is a new build plate surface.
- If there is none:
- clean the nozzle tip.
- Evidence to keep:
- photo of the bulge under low angle light.
Evidence: Bambu Lab Wiki: HMS_0300-0D00-0002-0001: Heatbed homing abnormal: there may be a bulge on the heatbed or the nozzle tip may not be clean.
Clean the nozzle tip when cold
- Who:
- you.
- How:
- set the nozzle to room temperature, wait until the screen or app confirms it has cooled and remove leftover filament with tweezers.
- Result that matters:
- a clean tip with no residue.
- If filament was stuck:
- remove it and run homing again.
- If it was clean:
- check the hotend screws.
- Evidence to keep:
- photo of the tip before and after.
Evidence: Bambu Lab Wiki: HMS_0300-0D00-0002-0001: Heatbed homing abnormal: there may be a bulge on the heatbed or the nozzle tip may not be clean.
Hotend screws and new homing
- Who:
- you.
- How:
- check that the two hotend fixing screws are tight and press Home again, watching whether the nozzle touches the bed normally.
- Result that matters:
- whether homing completes.
- If it completes:
- the alert clears by itself.
- If it fails again:
- go to Bambu Lab support.
- Evidence to keep:
- video of the homing.
Evidence: Bambu Lab Wiki: HMS_0300-0D00-0002-0001: Heatbed homing abnormal: there may be a bulge on the heatbed or the nozzle tip may not be clean.
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- 3D printers
- Brand
- Bambu Lab
- Product type
- 3D printer
Known code variants
- 0300 0D00 0002 0001
- Bambu Lab heatbed homing abnormal
- Bambu Lab homing cama
- HMS_0300-0D00-0002-0001
What it means
Bambu Lab explains that bed homing works by sensing the force with which the nozzle touches the bed. For it to be precise, the nozzle tip must be clean and the build plate surface must be rigid. This alert says that condition was not met. The causes it gives are a bulge on the build plate surface, leftover filament stuck to the nozzle tip or a fault in the detection algorithm, which is not always precise enough.
Warnings and stop conditions
- Highsource verified
Bambu Lab stresses that the nozzle must be fully cooled before cleaning it, to avoid burns.
Evidence: Bambu Lab Wiki: HMS_0300-0D00-0002-0001: Heatbed homing abnormal: there may be a bulge on the heatbed or the nozzle tip may not be clean.
Symptoms and causes
Probable causes · in order
- Bulge on the plate or bedCommon
If the plate surface has a bulge, the nozzle touches too early and force sensing is not reliable.
Evidence: Bambu Lab Wiki: HMS_0300-0D00-0002-0001: Heatbed homing abnormal: there may be a bulge on the heatbed or the nozzle tip may not be clean.
- Dirty nozzle tipCommon
Filament stuck to the tip changes the contact; the printer cleans the nozzle at the start, but sometimes it is not fully clean.
Evidence: Bambu Lab Wiki: HMS_0300-0D00-0002-0001: Heatbed homing abnormal: there may be a bulge on the heatbed or the nozzle tip may not be clean.
- Detection algorithm precisionLess common
Bambu Lab acknowledges the soft detection algorithm may not be precise enough, so the alert can appear without a physical fault.
Evidence: Bambu Lab Wiki: HMS_0300-0D00-0002-0001: Heatbed homing abnormal: there may be a bulge on the heatbed or the nozzle tip may not be clean.
Virtual technician
Does 0300-0D00-0002-0001 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Bambu Lab Wiki: HMS Home Page, List of Error Codes for Bambu Lab 3D Printers
Bambu Lab · 2026 · official_doc
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