What should I do if my Fronius Portable Generator shows a mains undervoltage or overvoltage error?
- SSierra RamirezSep 7, 2025
If you're getting a mains undervoltage or overvoltage error, it means the mains voltage is outside the tolerance range. Check the mains voltage, switch the machine off and on again; if the error keeps occurring, have the machine serviced.