The data is on the type plate, which you can find as shown.
Error code F120 indicates a problem with the power supply. This can be caused by a mains voltage that is too low or by a fault in the electronics.

Miele
F120

120

Error code F120 is what’s known as an “electronics error.” That means the electronics in your machine are very likely faulty. With a repair or a refurbished electronics unit from us, the error will be fixed for good and won’t come back.
Please enter your device’s model number in the appropriate field to 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.