EL
ErrorLib
Brands
||
  1. Home
  2. Fronius
  3. Symo Advanced
  4. 901
About·Privacy·Terms

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.

901

Service Required

Fronius · Symo Advanced

What does 901 mean?

This status code indicates that the Fronius Primo GEN24 208-240 inverter requires maintenance or has detected a non-critical internal issue that warrants attention. It may signify that a scheduled maintenance interval has been reached or that a minor internal fault has occurred which does not immediately stop operation.

Common Causes

  • The inverter has reached a scheduled maintenance interval based on its internal timer.
  • A non-critical internal fault or anomaly has been detected that does not immediately impact operation but requires investigation.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Review the inverter's event log via the user interface or Solar.web for additional details regarding the specific service requirement.

  2. 2

    Check for available firmware updates for the inverter and install them if applicable.

  3. 3

    Perform any scheduled maintenance procedures outlined in the maintenance section of the manual.

Browse all codes in this manual (41)
Verified technical data. Last updated: April 2026

Related Faults

102AC Voltage Range103AC Frequency Range1030WSD Open
Source: Fronius Symo Advanced
Open Manual (Page 149)Search more codes in this manual