Fronius · Primo Solar Inverter
The inverter is detecting that the neutral conductor on its AC side is not properly connected. This is a critical wiring issue that prevents proper grid power feed.
Click steps to track your progress.
Perform an AC reset by switching the automatic circuit breaker for the inverter off and then on again.
A qualified electrician must check the AC wiring connections at the inverter and breaker for any obvious disconnections.
If the status code persists, contact your system installer or a qualified electrician to inspect the AC wiring.