The display uses E codes to indicate the progress of the descaling process.
E0: Drawing in the descaling solution
E1: Activation phase
E2: Rinse 1
E3: Rinse 2
E4: Rinse 3
E5: Residual water evaporation

E0, E1, E2, E3, E4 or E5 appears on the oven display.
E0: Drawing in the descaling solution
E1: Activation phase
E2: Rinse 1
E3: Rinse 2
E4: Rinse 3
E5: Residual water evaporation