A steam oven asks for water when the tank is full

Write down the exact warning and the stage where it appears: before heating, partway through cooking or during a care program. Identify whether you have a standalone steam oven or a steam cavity within a range. The tank and controls may differ, even when the appliances share the Thermador name.

Thermador advises checking that the water tank is properly inserted when a refill indication remains despite a full tank. Follow the model manual and handle the tank only when safe; hot steam and water can cause burns. Use the specified fill level and water guidance, and do not force a tank that resists normal insertion.

If correct placement does not clear the warning, a detection-system concern may require service. Report whether the appliance recognizes the tank at any point and whether the message began after cleaning. Avoid repeated factory resets, improvised magnets or attempts to bypass a sensor. Those actions can obscure the original complaint or defeat normal protections.

Useful observations before you call

• Photograph the full message and identify the program that was selected.
• Record whether the tank was recently cleaned, replaced or removed for storage.
• Tell us if the oven stops heating, continues operating or refuses to begin the program.

Model-specific reference: Thermador owner support. Features and procedures vary; follow your appliance manual.