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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.

601

Fan fault

Fronius · Primo GEN24

What does 601 mean?

The Fronius Primo GEN24 208-240 inverter has detected a fault with its internal cooling fan. This can lead to insufficient cooling and subsequent overheating if not addressed, potentially reducing performance or causing shutdown.

Common Causes

  • Fan fault.
  • Blocked fan.
  • Dirty fan.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Power down the Fronius Primo GEN24 208-240 inverter using both AC and DC disconnects, then allow it to cool down completely.

  2. 2

    Carefully inspect the fan vents and fan blades for any obstructions (dust, debris, insects) and clean them if necessary.

  3. 3

    Check if the fan spins freely by gently trying to move it (with power off and safely discharged).

  4. 4

    Ensure the inverter's installation location provides adequate ventilation and is not exposed to direct sunlight or confined spaces that could impede airflow.

  5. 5

    If the fan remains faulty after cleaning and inspection, contact Fronius service for potential fan replacement, as this indicates an internal component failure.

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

Related Faults

102AC voltage too high103AC voltage too low1030WSD Open
Source: Fronius Primo GEN24
Open Manual (Page 149)Search more codes in this manual