Fronius · Symo Advanced Manual
The power generated by the photovoltaic array is insufficient to meet the minimum threshold required for the inverter to feed energy into the grid. This causes a short-term interruption, but the inverter will resume its start-up routine when conditions improve. This status code is routinely displayed during periods of low insolation (e.g., morning and evening) and does not indicate a fault at those times.
Click steps to track your progress.
Wait for a sufficient level of insolation (sunlight) on the solar modules.
Check that solar modules are not covered by snow, shade, or other obstructions.
If this status code keeps recurring outside of normal low light periods, contact your system engineer.