How to fix error codes E20-00, E20-02, E21-00, E21-06, E21-08 on Car-O-Liner Welding System?
- JJoseph ChavezAug 13, 2025
If your Car-O-Liner Welding System displays error codes E20-00, E20-02, E21-00, E21-06, or E21-08, it indicates that the control unit lacks the necessary software. To resolve this, download the appropriate software to an SD card, then insert the SD card into the control unit and power on the machine. If the issue persists, consider replacing the SD card.