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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.

462

Error with DC feed monitoring routine

Fronius · Symo Advanced Manual

What does 462 mean?

A malfunction has been detected in the routine responsible for monitoring the injection of DC current into the AC grid. This is a safety and regulatory function to prevent harmful DC components from reaching the grid.

Common Causes

  • Software bug or error in the DC injection monitoring algorithm
  • Hardware fault in the DC measurement circuitry

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    If this status code is displayed all the time, notify a Fronius-trained service engineer.

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 43)Search more codes in this manual