Software Fault

What does 504 mean?

This status code indicates an internal software error within the Fronius Primo GEN24 208-240 inverter. This may be caused by firmware corruption or an unexpected state in the operating software, which can prevent the inverter from functioning correctly.

• Corruption of the inverter's firmware.
• An unexpected software state or bug within the inverter's operating system.
• An unsuccessful or interrupted firmware update.

Click steps to track your progress.

1. 1

   De-energize the inverter (switch off AC and DC disconnects), wait for 5 minutes, then re-energize to attempt a software reset.

2. 2

   Check for available firmware updates for the inverter and perform an update if one is available.

3. 3

   If the message persists after a reset and firmware update, the inverter may require service.