What to do if Migatronic Welding System shows error E20-01 E21-01?
- PPamela HancockSep 16, 2025
If your Migatronic Welding System displays error codes E20-01 or E21-01, it means the SD card is not formatted correctly. You must format the SD card in a PC as FAT and then download the software to the SD card. If necessary, replace the SD card.













