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421
HID range error
Fronius · Symo Advanced Manual
Hva betyr 421 ?
An error has occurred related to the Human Interface Device (HID) range. This typically points to an internal communication or identification issue within the inverter's control system.
Vanlige årsaker
- Internal communication error within the control system
- Fault related to the device's human interface components
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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