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437

Power stage set problem

Fronius · Symo Advanced Manual

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A problem has been detected within the inverter's power stage set, which is responsible for the actual power conversion and grid interaction. This indicates a malfunction in the high-power section of the device.

Vanlige årsaker

  • Failure of power semiconductor components (e.g., IGBTs, MOSFETs)
  • Fault in the power stage control circuitry
  • Damage to the power stage module

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  1. 1

    If this status code is displayed all the time, notify a Fronius-trained service engineer.

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Verifisert teknisk data. Sist oppdatert: March 2026

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