Fiber laser troubleshooting guides

Practical guides for common fiber laser cutting machine issues. Follow the equipment maker's safety procedures and contact a qualified technician when needed.

Protective window keeps burning

Review contamination, back-spatter, cleaning and installation condition, nozzle alignment and seals before replacing parts again.

Centering a cutting nozzle

A practical overview of checking nozzle alignment with a low-energy test pulse. Use the correct laser safety eyewear and machine procedure.

Height sensor alarm

A step-by-step inspection order covering the nozzle, ceramic ring, workpiece surface, calibration and connections.

Ask a technician

If the alarm persists or the cause is unclear, stop and contact technical support with the machine model and alarm details.

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