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Fronius Symo Advanced
- Error Code - 489 - Permanent Overvoltage
- Error Code - 502 - Insulation fault
- Error Code - 509 - No feed-in
- Error Code - 515 - Filter Communication Error
- Error Code - 516 - Memory Communication Error
- Error Code - 517 - Power Deration
- Error Code - 518 - Internal DSP Malfunction
- Error Code - 519 - Memory Communication Error
- Error Code - 520 - No feed-in
- Error Code - 522 - DC low String 1