- First determine the location of the high-voltage ignition. If it is the high-voltage connection between the laser tube and the laser power supply, check whether the connector is placed correctly or the underside of the high-voltage support is damp, then clamp the connector on the insulating support or use a blower to dry the damp part;
- Check whether the high-voltage connector is firmly connected, whether there is any virtual connection or virtual welding phenomenon, to ensure that the solder joints have no virtual connection and the connection is firm;
- If the spark is inside the laser power supply, the laser power supply needs to be replaced;
- The high-voltage end of the laser tube is ignited or the laser tube still ignites after replacing the laser power supply. The laser tube needs to be replaced.