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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.

107

No AC grid

Fronius · Solar Energy

What does 107 mean?

No AC grid connection is detected by the inverter. This prevents the inverter from feeding energy into the grid.

Common Causes

  • Absence of AC grid voltage
  • Faulty AC grid connection
  • Tripped circuit breaker upstream of the inverter

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check all AC grid connections at the inverter and point of common coupling

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 123)Search more codes in this manual