The data is on the type plate, which you can find as shown.
Error code F257 refers to a problem with the imbalance sensor of your washing machine. This sensor is responsible for monitoring the drum movement and making sure that the laundry is evenly distributed. If the sensor is defective or if there is a problem with the wiring, the washing machine cannot continue the program.
Common causes of error F257 are:

Miele
F257

257

Error code F257 is what is known as an “electronics fault”. That means – the electronics in your machine are very likely defective. With a repair or with refurbished electronics from us, the error is fixed for good and will not come back.
Please enter the model number of your appliance in the corresponding field and find the right products to fix your error.
The data is on the type plate, which you can find as shown.
No problem. Send us the most important details about your appliance and the fault. Our team will review your information and help you find the right solution.