Solution to error code HMS_0300-0A00-0001-0003 on Bamboo printers
When your Bamboo 3D printer displays the HMS_0300-0A00-0001-0003 code, it is alerting about an anomalous speed in the hotend fan that can seriously compromise the quality of your prints. This problem usually originates from mechanical obstructions or controller failures, directly affecting the cooling capacity during the printing process. 🔧
Physical inspection of the ventilation system
The first step is to perform a thorough verification of the cooling component. Completely disconnect the electrical power and visually examine the hotend fan for particle buildup or loose connections that may interfere with its normal operation.
Mechanical review procedure:- Manually rotate the fan blades to check that they rotate without abnormal resistance
- Thoroughly inspect for accumulated dust or cables obstructing movement
- Verify that there are no visible damages on the blades or fan shaft
A fan that does not spin freely can generate incorrect speed readings and trigger the HMS_0300 error code
Electronic and connection diagnosis
If the mechanical component works correctly, the problem may lie in the electronic system. It is essential to check the connections on the mainboard and the specific fan controller using appropriate measuring tools.
Electrical circuit verification:- Use a multimeter to measure the output voltage to the fan
- Compare the obtained readings with the manufacturer's technical specifications
- Examine the condition of cables and connectors for damage or corrosion
Comprehensive problem solution
When the fan exhibits erratic behavior, speeding up and slowing down unpredictably, you may need to adjust the firmware configuration or replace electronic components. Ensure that the speed parameters are correctly calibrated to maintain a stable temperature in the hotend throughout the printing process. 🎯