Fronius · Primo GEN24
The Fronius Primo GEN24 208-240 inverter's Arc Fault Circuit Interrupter (AFCI) has failed its internal self-test. This means the AFCI function, a critical safety feature, is not working correctly, and the inverter cannot operate safely.
Click steps to track your progress.
Perform a full power cycle of the Fronius Primo GEN24 208-240 inverter by cycling both AC and DC disconnects, waiting, and then reapplying power. This might reset the AFCI module.
Ensure that the inverter's firmware is the latest version, as software updates can sometimes resolve internal diagnostic issues.
Check the inverter's event log for any other internal fault codes (e.g., 7xx series) that might indicate a broader internal communication or hardware problem affecting the AFCI.
Verify that there are no unusual external electrical disturbances or electromagnetic interference that could affect the AFCI self-test.
If the AFCI self-test continues to fail, this indicates a fault with the internal AFCI hardware; contact Fronius service for specialized diagnostics and potential replacement.