Steam-assisted Miele oven shows error related to water system; steam functions disabled.

Safety first: Disconnect power and allow the appliance to cool. Steam systems operate under pressure and high temperature.

• Check water container: Ensure the water tank is filled, correctly inserted, and its contacts are clean. Wipe any scale or residue from the contacts.
• Descale system: If the oven indicates scaling or water flow issues, run the built-in descaling program using Miele-approved descaling agents, following the user manual.
• Inspect inlet and hoses: For plumbed models, verify that the water supply valve is open and the inlet hose is not kinked. Clean the inlet filter screen.
• Steam generator check: If no steam is produced despite correct water supply, the steam generator heater or level sensor may be faulty. These components are internal and typically require professional service to replace.

Do not attempt to open the steam generator tank yourself; risk of scalding and damage is high.