The Siemens CU240S experienced inverter over-temperature, likely from overload, inadequate ventilation, high pulse frequency, ambient heat, or a non-functioning fan. The manual's first action is: “Remedy: Check the following: • Load or load cycle too high? • Motor power (p0307) must match inverter power (r0206) • Pulse frequency must be set to default value • Ambient temperature too high? • Fan must turn when inverter is running”
- Model
- Siemens CU240S
- Display shows
- Inverter Over Temperature (F00004)
- Type
- Fault code
- Source
- Manual p. 380
What F00004 means
Inverter Over Temperature p. 380
Common causes
- Reaction: OFF 2 Acknowledge: Quit fault eg. via DI2 Cause: • Inverter overloaded • Ventilation inadequate • Pulse frequency too high • Ambient temperature too high • Fan inoperative p. 380
What to do
- Remedy: Check the following: • Load or load cycle too high? • Motor power (p0307) must match inverter power (r0206) • Pulse frequency must be set to default value • Ambient temperature too high? • Fan must turn when inverter is running p. 380
If F00004 is still not resolved
The manual gives no further instruction for this code. Open the code table in the PDF or contact Siemens service.
This page summarises what the manufacturer’s manual says about F00004; 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.