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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

472

Fuse for solar module ground is faulty; no solar module ground detected

Fronius · Symo Advanced Manual

What does 472 mean?

The fuse protecting the solar module grounding circuit is faulty or blown, resulting in no detection of a proper solar module ground connection. This prevents the inverter from feeding energy due to safety concerns.

Common Causes

  • Blown fuse in the solar module grounding path
  • Faulty wiring or connection to the solar module ground

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    If this status code keeps recurring, contact your system engineer to inspect and replace the fuse for the solar module ground.

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

Related Faults

102AC voltage too high103AC voltage too low105AC frequency too high
Source: Fronius Symo Advanced Manual
Open Manual (Page 44)Search more codes in this manual