Fronius · Solar Inverters
The Fronius Solar Inverter has detected a general error within its fieldbus communication system. This is indicated by LEDs 1, 2, 4, 8, and the State LED all lighting up steady red, with LEDs 2 and 8 specifically illuminated for the binary code.
Click steps to track your progress.
Observe the inverter for a few minutes to see if the error clears automatically.
Check all fieldbus cable connections for secure seating and absence of damage.
If the error persists, contact a Fronius-trained service engineer to diagnose the fieldbus network.