41Descaling programRegular descaling maintains the good condition of thecooking compartment. The cooking compartment isdescaled, rinsed, and dried completely automaticallywith the descaling program.Depending on the type of water and use of theappliance, a message on the display reminds you thatthe descaling program should be run. If necessary(e.g. with scaling in the cooking compartment), you canrun the descaling program more frequently.The complete descaling program takes 2 hours15 minutes.For the descaling program, you need special descalingcartridges. These are available from customer service orfrom the online shop (CL S20 040 set with 4 descalingcartridges, order number 00311768).NOTICE: Damage to the cooking compartment: Onlyuse descaling cartridges for the descaling program.Never place descaling cartridges in the hot cookingcompartment or heat them in the cooking compartment.Notes‒ The descaling program can only be started if theappliance has cooled down below 104°F (40°C).‒ Remove all accessories from the cookingcompartment before you start the descalingprogram (wire rack, cooking containers, coretemperature probe).‒ The drain filter must remain inserted in the cookingcompartment floor while the descaling program isin progress.‒ The appliance door is locked during the descalingprogram.‒ Always leave the descaling program run to the end.The descaling program cannot be canceled.‒ Even with use of the descaling and taste filter(special accessories GF 111 100), depending onthe water type and use of the appliance, descalingmay be necessary. A message appears on thedisplay reminding you of this.