If the blue laser light of the laser module is on automatically and cannot be turned off after powering on the machine, there are several possible reasons.
- The toolhead cable is faulty.
- The Laser module is faulty.
- The controller is faulty
The toolhead cable is faulty.
The cables below are interchangeable. Please use the Y or Z conversion cable to be the toolhead cable and check whether the issue is gone.
The Laser module is faulty.
Check whether the printing module works well, especially check whether the gear in the printing head rotates or not. On the touchscreen, go to Control and let the nozzle be up to 200℃. Tap Load and Upload to see if the gear rotates.
If the gear rotates and the printing module works well, the laser module itself may be faulty.
The controller is faulty
The chip in the controller may have an issue if the laser module stays on and the gear in the printing module does not rotate.
According to our experience, the most possible reason for the controller issue is caused by the wrong cable plugging.
By the way, although the controller has an issue, the CNC module can still work.
Please send an email to email@example.com for further help.