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Error No. 0103 - Grid voltage is too high


SMA Manual Recommendation


Error no.ExplanationInverter behaviorCorrective measures
S 1S 2R
0103Line voltage is too high. Overvoltage detected by redundant monitoring.30 s30 s-• Check the line voltage.
• Check the grid
• Check if the power
distribution grid is
• Make sure that the
external fuses function
• 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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