What does 'toF | xxx' mean on a Fronius TransSteel 2200c?
- MmichaelcookSep 3, 2025
If your Fronius Welding System displays 'toF | xxx', the power source's safety cut-out has activated to prevent the mains fuse from tripping. After a pause in welding of around 60 seconds, the message will disappear, and the power source will be operational again.











