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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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If this status code is displayed all the time, notify a Fronius-trained service engineer.
Verifisert teknisk data. Sist oppdatert: March 2026
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Kilde: Fronius Symo Advanced Manual