Demo mode is activated.
On cooktops without knobs, the demo mode can be deactivated as follows:
Switch the cooktop on.
Place an induction-compatible item of cookware on the cooktop.
Press the 0 sensor control on any numerical display.
Then touch the 0 and 2 sensor controls at the same time for 6 seconds.
In the timer display, dE flashes alternately with On (demo mode activated) or OFF (demo mode deactivated) for a few seconds.
On cooktops with knobs, the demo mode can be deactivated as follows:
Turn the knob for the front left cooking zone counterclockwise and hold.
Turn the knob for the front right cooking zone twice briefly counterclockwise and then turn counterclockwise and hold until the following appears in the cooking zone display:
dE (demo mode activated)
or
0000 (demo mode deactivated)