Steam oven produces very little or no steam, but no error code is displayed; water tank is full.

Safety first: Allow the appliance to cool before working on the steam system.

Step-by-step checks:

• Descale: Run the full descaling program using the recommended V-ZUG descaler. Repeat if the appliance indicates heavy scaling.
• Clean water tank and filter: Rinse the tank thoroughly and clean any removable filters or strainers.
• Check steam outlet: Inspect the steam outlet inside the cavity for blockages. Gently clean with a soft brush; do not use sharp objects.

When to call a technician: If steam output remains weak, the pump or steam generator may need professional cleaning or replacement.