Fronius Symo Hybrid Inverter Code 476 — Driver supply voltage too low

What does 476 mean?

The supply voltage to the internal driver circuits within the inverter has fallen below the minimum required level. This critical issue prevents the inverter from feeding any energy into the grid.

• Internal power supply unit fault
• Component failure on the driver board
• Overload on internal supply

Click steps to track your progress.

1. 1

   Perform a full AC and DC power cycle of the inverter: Disconnect both AC and DC power, wait 5 minutes, then reconnect.

2. 2

   Observe the inverter to see if the error clears and energy feeding resumes.

3. 3

   If this status code keeps recurring, contact your system engineer for internal diagnosis.