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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.

313

Battery input voltage too high

Fronius · Solar Energy

What does 313 mean?

The battery input voltage has exceeded its permissible limits, leading to a short-term interruption of energy feeding into the grid. The inverter will attempt to restart its routine, and this code can occur sporadically without a persistent fault.

Common Causes

  • Battery voltage exceeding safe operating parameters
  • Incorrect battery connection
  • Malfunctioning battery charge controller

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the battery is switched on and properly connected

  2. 2

    Check the battery voltage at the inverter input terminals

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

Related Faults

1Hardware fault102AC voltage too high103AC voltage too low
Source: Fronius Solar Energy
Open Manual (Page 125)Search more codes in this manual