The request sent could not be processed correctly.
Affects Miele app on iOS and Android mobile devices.
Fault code 400 means that the request sent by the Miele app could not be processed correctly.
Repeat the process at a later time.
Close the Miele app and then restart it.
Ensure that you have a stable Internet connection. You can check this by accessing other apps or websites.
Check the WiFi reception at the site where the Miele domestic appliance is installed.
If the fault persists:
Contact Miele Customer Service.
