Option fault

What does E. 1 mean?

This fault stops the inverter output, triggered either by excessive electrical noise in the environment or an incorrect setting of the manufacturer's internal switch. Such conditions can lead to unreliable inverter operation or unexpected shutdowns. Identifying and addressing the source of noise or the switch position is crucial for stable performance.

Complete Troubleshooting Guide

1. 1

   Inspect the area around the inverter for devices producing excessive electrical noise and implement appropriate noise reduction measures.

2. 2

   Check the manufacturer setting switch position and return it to its initial (factory default) status.

3. 3

   If the fault continues after these actions, contact your sales representative.