Error hms_0a00-0200-0001-0005 in Bambu Lab: air quality sensor failure

Published on January 05, 2026 | Translated from Spanish
Diagram or photograph showing the internal location of the volatile organic compounds (VOC) sensor and its connection to the main board in a Bambu Lab 3D printer, with the error code HMS_0A00-0200-0001-0005 overlaid.

Bambu Lab HMS_0A00-0200-0001-0005 Error: Air Quality Sensor Failure

If your Bambu Lab printer displays the code HMS_0A00-0200-0001-0005, the system detects a problem with the air quality sensor (VOC). This component is key to measuring the volatile organic compounds released during printing. Without reliable data, the machine cannot manage the activated carbon filter that cleans the air before expelling it. 🚨

What does this error imply for daily operation?

When this code appears, the automatic mode of the filtration system stops operating. The printer does not adjust the fan speed according to actual contaminant levels, because the sensor reading is invalid. Although you can continue printing, the air is not purified intelligently.

Direct consequences of the failure:
  • The activated carbon filter operates in a fixed mode or does not activate correctly.
  • The printer does not respond to changes in VOC concentration in the printing environment.
  • It is crucial to check the sensor connections, located near the filtration module, to rule out that it is loose.
A defective VOC sensor does not stop printing, but it does disable a key environmental safety function.

Procedure to diagnose and solve the problem

Before assuming a serious failure, follow these steps in order. Many errors are resolved with simple actions.

Step-by-step guide:
  • Full restart: Turn off the printer, unplug it from the power grid, and wait at least 60 seconds. When turning it back on, the system will attempt to recalibrate the sensor automatically.
  • Physical inspection: If the error persists, check the sensor connector on the main board. Ensure it is firmly inserted and that the cable has no visible cuts or crushes.
  • Final diagnosis: If after checking the connections the code does not disappear, it is likely that the sensor itself has failed and requires replacement. At this point, you must contact Bambu Lab's official technical support.

Keep your printing space safe

Resolving the HMS_0A00-0200-0001-0005 error restores your Bambu Lab's ability to monitor and actively clean the air. Do not ignore this warning; ensure your equipment functions not only to create objects, but also to protect the environment where you work. 🛡️