F69

External Sync Failed

Schneider Electric · XW Pro NA Operation Guide

What does F69 mean?

This Manual Fault occurs when the external AC sync port connection or cable is faulty, or something is improperly plugged into the AC sync port in a single-inverter system. This prevents proper synchronization.

Complete Troubleshooting Guide

  1. 1

    Check connections and cable on external AC sync port.

  2. 2

    In a single-inverter system, ensure nothing is plugged into the AC sync port.

  3. 3

    Clear fault and try again.

  4. 4

    If these steps fail, the unit requires service.

Source: Schneider Electric Manual