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14

Error 14 (Binary 1110) — Fieldbus data buffer overflow

Fronius · Solar Inverters

What does 14 mean?

The Fronius Solar Inverter's fieldbus data buffer has overflowed, meaning it received more data than it could process. This is indicated by LEDs 1, 2, 4, 8, and the State LED all lighting up steady red, with LEDs 2, 4, and 8 specifically illuminated for the binary code.

Common Causes

  • High data traffic on the fieldbus
  • Slow processing of data
  • Incorrect data streaming settings

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Observe the inverter for a few minutes to see if the error clears automatically.

  2. 2

    Review any devices connected to the fieldbus to ensure they are not sending excessive data.

  3. 3

    If the error persists, contact a Fronius-trained service engineer to check fieldbus data rates and inverter processing capabilities.

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

Related Faults

1Error 1 (Binary 0001) — Hardware fault10Error 10 (Binary 1010) — General fieldbus error102Fronius Symo Hybrid Inverter Code 102 — AC voltage too high
Source: Fronius Solar Inverters
Open Manual (Page 134)Search more codes in this manual