To remove mineral deposits that remain on the oven bottom after using the steam mode, use a cloth or sponge soaked in vinegar or a weak citric acid solution. For more stubborn or extensive scaling, use the Descaling function.
Use this function to remove the white deposits that form after the steam generator is used for a long period.
The Descaling function runs for 1 hour 43 minutes. Water will come out of the steam generator while it is being cleaned.
For instructions on removing and filling the steam feeder tank, see "Using the Steam Feeder Tank."
Fill the steam feeder tank with a 20:1 mixture of water and citric acid. For example, use 4 tsp of citric acid in 4 1/4 cups water (20 g citric acid in 1000 ml water).
Insert the steam feeder tank into the slot over the oven cavity and push it in until it clicks into place.
Touch Clean in the Cooking Modes screen. Touch Steam Maintenance and Descaling in that order.
After 1 hour 43 minutes of descaling, a popup will appear in the display. Following the instructions, drain the tank and fill it with clean water.
Insert the tank and start the Rinsing function.
Once the Rinsing function is complete, dry the inside of the oven with a soft cloth. Leave the oven door open and allow the oven to dry completely.
The Rinsing function must be completed even if the Descaling function is canceled.
If water remains on the oven bottom after descaling, it can leave a residue after the oven is used. To remove the residue, see the instructions under "Cleaning Scale on Oven Bottom."
After running the Descaling function, clean the steam feeder tank.