775

PMC power stage set not available

Fronius · Solar Energy

What does 775 mean?

The PMC (Power Management Controller) power stage set is not available, resulting in a warning message on the display.

Common Causes

  • Communication loss with the power stage set
  • Power stage set hardware malfunction
  • Incorrect configuration

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Press the 'Enter' key on the display to acknowledge the error

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Verified technical data. Last updated: March 2026

Related Faults

558Functional incompatibility (PC boards)324DC module overtemperature (battery)517Power derating caused by excessively high temperatures
Source: Fronius Solar Energy
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