Siemens CU240S Error F00023: Output phase fault

Siemens CU240S · taken from the manufacturer’s manual, pages cited

Fault codeF00023

The Siemens CU240S detected an output phase fault due to one output phase being disconnected. The manual's first action is: “Check motor connection.”

Model
Siemens CU240S
Display shows
Output phase fault (F00023)
Type
Fault code
Source
Manual p. 381

What F00023 means

Output phase fault p. 381

Common causes

  • One output phase is disconnected. p. 381

What to do

  1. Check motor connection. p. 381

If F00023 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 381 All CU240S error codes Manual details & download

This page summarises what the manufacturer’s manual says about F00023; 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.