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Fronius Symo Advanced
- Error Code - 450 - No guard found
- Error Code - 452 - Communication Error
- Error Code - 453 - Grid voltage/Power module Mismatch
- Error Code - 454 - Grid Frequency/Power Module Mismatch
- Error Code - 456 - Anti-islanding Error
- Error Code - 457 - Grid Relay Stuck/ Neutral Conductor Voltage
- Error Code - 458 - Error Measuring Signal
- Error Code - 459 - Error During Insulation Test
- Error Code - 460 - DSP Voltage Fault
- Error Code - 461 - Error in DSP Data Memory