Option Fault / Internal Contact Failure

What does E.1 mean?

The inverter output is shut off due to a contact failure between the inverter and a plug-in option, or if a manufacturer setting switch on the plug-in option has been altered. Excessive electrical noise around the inverter can also contribute to this fault. This compromises the functionality of the plug-in option.

Complete Troubleshooting Guide

1. 1

   Ensure the plug-in option is securely and correctly seated in its connector.

2. 2

   Implement measures to reduce excessive electrical noise in the environment surrounding the inverter.

3. 3

   If applicable, restore any manufacturer setting switches on the plug-in option to their initial configuration.

4. 4

   If the problem persists after these steps, contact your sales representative.