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566

566 Arc detector switched off - Arc detector is deactivated.

Fronius · Primo Solar Inverter

What does 566 mean?

This status code is displayed every day when the internal arc detector has been manually switched off, for example, if an external arc monitoring system is in use. This is not an error.

Common Causes

  • The internal arc detector has been intentionally deactivated (e.g., for external monitoring).

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Confirm the status code by pressing the "Enter" key on the inverter display.

  2. 2

    Verify that the arc detector was intentionally switched off (e.g., if you have an external arc monitoring system).

  3. 3

    If the arc detector needs to be reactivated, consult your system installer or the inverter setup menu.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

240240 Arc detected - Brief detection of an electrical arc.241241 Arc detected - Inverter disconnected due to a confirmed arc.242242 Arc detected - Inverter resuming operation after arc reset.
Source: Fronius Primo Solar Inverter
Open Manual (Page 48)Search more codes in this manual