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Software below 1.25.2

Software below version 1.25.2 - Inverter needs update

Fronius · Primo GEN24 Inverters

What does Software below 1.25.2 mean?

If the inverter's software version is below 1.25.2, it may not meet the requirements for automatic shutdown of the power supply in the event of a fault. An update is necessary to ensure full functionality and compliance.

Common Causes

  • Outdated inverter software
  • Missed automatic software updates
  • Inverter installed with an older firmware version

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the current software version of your Fronius Primo GEN24 inverter via the user interface or Fronius Solar.start app.

  2. 2

    Perform a software update as per the instructions in the Fronius Solar.start app or Solar.web portal.

  3. 3

    Ensure the inverter is connected to the internet for automatic updates or to download new firmware.

Browse all codes in this manual (17)
Verified technical data. Last updated: April 2026

Related Faults

1030Status Code 1030 - WSD Open (flashing red LED)1083Status Code 1083 - Insulation warning1173Status Code 1173 - ArcContinuousFault (flashing red LED)
Source: Fronius Primo GEN24 Inverters
Open Manual (Page 169)Search more codes in this manual