Fronius · Symo Advanced Manual
The inverter's internal temperature has exceeded safe operating limits, causing it to automatically reduce its output power (power derating) to prevent damage. A warning message is displayed.
Click steps to track your progress.
If necessary, purge cooling air openings and the heat sink to restore proper airflow.
The fault is rectified automatically once the temperature decreases.
If this status code keeps recurring, contact your system engineer for inspection of the cooling system.