The touchscreen displays “Lens protector temperature exceptions” and the machine cannot be used.
The lens protector may be severely contaminated by splatters or smoke generated during laser processing. The contamination causes laser beams to scatter and diffuse, leading to a rapid temperature increase around the lens protector.
1. Turn off the machine and move it to a relatively dust-free environment.
2. Wear lint-free gloves. Then, remove the cover and take out the lens protector closest to the nozzle.


3. Check the lens protector.
■ If the lens protector is slightly dirty, use a cotton swab dipped with alcohol to clean it. Then, install it back to the welding head.
■ If the lens protector is burned or heavily dirty and uncleanable, replace it with a new one.

Should the issue persist after completing the preceding steps, submit a ticket via the "Submit a Ticket" button in the "Help Ticket" section below. The standard response time for xTool Customer Service is one business day.
For a prompt resolution, please include the following details:
This information is crucial for xTool technical support engineers to provide timely assistance.
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