Fronius · Primo GEN24
The Fronius Primo GEN24 208-240 inverter has detected a general internal fault that prevents it from operating safely or correctly. This is a broad error indicating an unspecified hardware or software malfunction within the inverter itself.
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Perform a full power cycle of the Fronius Primo GEN24 208-240 inverter: Open the AC circuit breaker, then the DC disconnector, wait for a few minutes, and then reclose them in reverse order (DC first, then AC).
Check the inverter's event log for any more specific fault codes that might have occurred prior to or concurrently with the 701 error.
Ensure the inverter's firmware is the latest version available; sometimes, internal issues are addressed in software updates.
Visually inspect the inverter's interior (if safely accessible by qualified personnel) for any obvious signs of damage, such as burnt components or loose connections.
If the fault persists after power cycling and firmware verification, contact Fronius service, providing them with the error code and any relevant system logs for advanced diagnostics.