Miele Washer Error Code F4057

F4057 means the washer's control system is not receiving any signal from the tachogenerator, the sensor that monitors motor speed and rotation. Without this feedback, the machine cannot safely control the drum during any cycle phase. The washer stops operation to prevent potential damage. The fault points to the tachogenerator, its wiring circuit, or the motor itself.

No. The washer displays F4057 precisely because it cannot confirm the motor is operating correctly, and continued use without a verified speed signal risks motor damage or unpredictable drum behavior. The machine will typically refuse to complete a cycle when this fault is active, which itself serves as a safety measure.

A power reset may temporarily clear the fault display, but if the underlying cause, such as a failed tachogenerator or broken wire, is still present, the code will return as soon as the machine attempts to run the motor. A reset alone is not a repair. The physical fault must be identified and corrected for the machine to operate normally and for the error to stay cleared.

Some causes of F4057 are accessible to a skilled DIYer, particularly inspecting and reseating wiring connectors or testing the tachogenerator coil with a multimeter. However, replacing the drive motor or motor control board requires disassembly of the machine and comfort working with electrical components. If you are not experienced with appliance repair, a qualified technician is the safer option.

Repair costs vary depending on the root cause. A wiring repair or connector fix might cost relatively little in parts, with labor being the primary expense. Tachogenerator or motor replacement on a Miele washer typically runs in the range of $150 to $400 or more depending on parts and local labor rates. Motor control board replacement can push costs higher, often in the $300 to $600 range including labor.