Clean and Inspect the Hotend Heat Sink Fan

To resolve heat creep caused by poor airflow, ensure the hotend cooling fan is operating correctly:

• Safety: Power off the printer and allow the hotend to cool to room temperature.
• Inspection: Use compressed air to remove any dust or debris from the heat sink fins and the fan blades.
• Verification: Power on the printer and navigate to the fan control menu to set the hotend fan to 100%. Verify that air is flowing freely through the heat sink and that there is no audible grinding or obstruction.