Zeror.ai Error Codes Siemens F03001

Siemens F03001

Brand: SiemensModel: SINAMICS G120 CU250S2Error code: F03001

What the Fault Means

Fault: NVRAM checksum incorrect

Likely causes

  • A checksum error occurred when evaluating the non-volatile data (NVRAM) on the Control Unit
  • The NVRAM data affected was deleted.

Solution and Safe First Checks

  1. Carry out a POWER ON (switch-off/switch-on) for all components.

Safety: do not work inside the panel without isolating the power; if unsure, consult a qualified technician.

Related Siemens error codes

Source: the Zeror.ai industrial fault database and Siemens technical documentation. This page is for information; on critical systems follow the manufacturer's manual and authorised service.