The fan in the power unit has operated for more than 500 hours, exceeding its maximum allowed operating time. The manual's first action is: “This message indicates the following: Fault value (0949, decimal interpretation): 0: The maximum fan operating time is 500 hours. 1: The maximum fan operating time has been exceeded.”
- Model
- Siemens CU240B/E-2
- Display shows
- Power unit: Fan operating time reached or exceeded (A30042)
- Type
- Fault code
- Source
- Manual p. 718
What A30042 means
Power unit: Fan operating time reached or exceeded p. 718
Common causes
- The maximum operating time of the fan in the power unit is set in p0252. p. 718
What to do
- This message indicates the following: Fault value (0949, decimal interpretation): 0: The maximum fan operating time is 500 hours. 1: The maximum fan operating time has been exceeded. p. 718
- Replace the fan in the power unit and reset the operating hours counter to 0 (p0251 = 0). p. 718
If A30042 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 A30042; 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.