When the handheld welding machine has no red light problem, you can follow the steps below to troubleshoot and solve:
1. **Check Power Supply**:
– **Step**: Use the multimeter to measure the power input voltage of the red light indicator.
– Solution: Make sure that the power cord is firmly connected and the voltage is stable within the specified range. If the voltage is unstable, the power module needs to be repaired or replaced.
2. **Check the Red Light Indicator**:
– **Steps**: Observe the status of the red light indicator and whether the indicator light is normal.
– **Solution**: If the red light indicator is damaged, the red light indicator needs to be replaced.
3. **Check Control System Settings**:
– **Steps**: Check the settings of the control panel and make sure the red light function is enabled.
– Solution: Confirm that the control board is fault-free, and recalibrate or replace the control board if necessary.
4. **Check the fiber connection**:
– **Steps**: Check that the fiber connection is stable and that the fiber is not damaged or excessively bent.
– Workaround: Make sure the fiber connection is tight and not damaged. If there is a problem, the fiber or connector needs to be replaced.
5. **Clean and inspect the lenses**:
– **Steps**: Inspect the protective lenses, focusing lenses, and mirrors to make sure there are no dust, oil, or burn spots.
– Solution: Clean the lenses with special lens paper and anhydrous alcohol. If the lens is damaged, the lens needs to be replaced.
6. **Check Laser**:
– **Steps**: Check the working status and indicator of the laser to confirm that there is no abnormal alarm.
– Solution: If the laser fails or its performance deteriorates, the laser needs to be repaired or replaced.
7. **Check the shielding gas system**:
– **Step**: Check that the shielding gas supply and air pressure are normal.
– **Solution**: Make sure the air pressure is stable and the air valve is working properly. If there is a problem, adjust the gas flow or replace the gas supply equipment.
8. **Check the control circuit**:
– **Step**: Check that the components and connections on the control circuit board are in order.
– Solution: If the components on the control circuit board are faulty or in poor contact, the control circuit board needs to be replaced.
9. **Perform a red light function test**:
– **Steps**: Under the condition of ensuring safety, turn on the red light function to test and observe whether the red light is displayed normally.
– Workaround: If the red light still doesn’t appear, you may need more in-depth inspection and repair.
With these steps, it is possible to effectively diagnose and troubleshoot the problem that the handheld welding machine does not have a red light display. If the problem persists, it is recommended to contact technical support for a more in-depth inspection and repair.
If you need further assistance, please feel free to contact Yousheng Laser Co., Ltd.:
– Contact number: 886-4-24263121