Siemens MICROMASTER 420 Error F0085: External Fault

Siemens MICROMASTER 420 inverter · taken from the manufacturer’s manual, pages cited

Fault codeF0085

External Fault is triggered via terminal inputs The manual's first action is: “Disable terminal input for fault trigger”

Model
Siemens MICROMASTER 420
Display shows
External Fault (F0085)
Type
Fault code
Source
Manual p. 71

What F0085 means

External Fault p. 71

Common causes

  • External fault is triggered via terminal inputs p. 71

What to do

  1. Disable terminal input for fault trigger p. 71

Before you service the product, read the safety instructions in the manual p. 6.

If F0085 is still not resolved

The manual gives no further instruction for this code. Open the code table in the PDF or contact Siemens service.

Open the manual at page 71 All MICROMASTER 420 error codes Manual details & download

This page summarises what the manufacturer’s manual says about F0085; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Siemens. Found a mistake? Report an error.