F1

AC Output Under Voltage

Schneider Electric · XW Pro NA Operation Guide

What does F1 mean?

This Escalating Automatic Fault indicates an AC under-voltage shutdown (below 108 V). If it occurs 3 times in 2 minutes, it becomes a manual fault, meaning the inverter has repeatedly shut down to protect connected loads.

Complete Troubleshooting Guide

  1. 1

    Clear the fault and attempt restart.

  2. 2

    If problem persists, call customer service.

Source: Schneider Electric Manual