Siemens MICROMASTER 420 Error F0101: Stack Overflow

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

Fault codeF0101

F0101 indicates a software error or processor failure. The manual's first action is: “1. Run self test routines 2. Change inverter”

Model
Siemens MICROMASTER 420
Display shows
Stack Overflow (F0101)
Type
Fault code
Source
Manual p. 71

What F0101 means

Stack Overflow p. 71

Common causes

  • Software error or processor failure p. 71

What to do

  1. 1. Run self test routines 2. Change inverter p. 71

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

If F0101 is still not resolved

  • 1. Run self test routines 2. Change inverter p. 71
    “1. Run self test routines 2. Change inverter”
Open the manual at page 71 All MICROMASTER 420 error codes Manual details & download

This page summarises what the manufacturer’s manual says about F0101; 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.