We have described the error code F21 washing machine Siemens, the causes of the malfunction, the recommendations of diagnostics and repair. For convenience, arranged in a convenient and understandable table below.
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| Error code | Description | Causes and solution |
|---|---|---|
| F21 | The control system is out of order. Incorrect operation of the drive motor and lack of rotation of the drum. | Diagnose the control system, triacs, tachogenerator, drive motor and reverse relay. |