SMA Manual Recommendation
| Error no. | Explanation | Inverter behavior | Corrective measures | ||
| S 1 | S 2 | R | |||
| 0103 | Line voltage is too high. Overvoltage detected by redundant monitoring. | 30 s | 30 s | - | • Check the line voltage. • Check the grid connections. • Check if the power distribution grid is stable. • Make sure that the external fuses function properly. • Make sure that the AC cable connections are securely connected. |
Description - The system has detected excess voltage through the line.
Troubleshooting Actions - Inspect the voltage of line and the connection to the grid. AC connections to the grid need to be secure and without fault when in operation. Test line voltage for stability.
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