Fault code

INVT GD20 EF External fault

Diagnostic context

What EF means on INVT GD20

EF is the GD20 external fault. The manufacturer associates this fault with sI external fault input terminals action.

Operating context: Start with the manufacturer troubleshooting step: Check the external device input.

This diagnostic context is an editorial explanation. The possible causes and recommended checks below are the verified manufacturer troubleshooting content.

Possible causes

  • SI external fault input terminals action.

Recommended checks and actions

  • Check the external device input.

Technical source

INVT GD20 Manual EN - P07.27 Current fault type — page 62

INVT GD20 Manual EN - Fault tracking — page 94

Manual tiếng Việt INVT GD20 - Xử lý lỗi — page 83