106

Ripple Detected

Fronius · Symo Advanced

What does 106 mean?

This status code indicates that the Fronius Primo GEN24 208-240 inverter has detected excessive ripple in the grid voltage. This issue suggests an instability in the AC grid or a potential measurement problem within the inverter.

Common Causes

  • Significant instability in the AC grid, leading to voltage ripple.
  • A measurement issue within the inverter's AC monitoring circuit.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Observe the AC grid for stability, checking for unusual voltage fluctuations or disturbances.

  2. 2

    De-energize the inverter (switch off AC and DC disconnects), wait for 5 minutes, then re-energize to reset. If the message persists, the inverter may require service.

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Verified technical data. Last updated: March 2026

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