The circuit breaker has tripped.
Reset the breaker (see data plate for minimum protection rating).
The induction cooktop no longer responds to the controls.
Reset the breaker (see data plate for minimum protection rating).
Deactivate the system lock/safety lock as described in the operating instructions.
Clean the control field.
Disconnect the appliance from the power supply for approx. 1 minute.
Turn off the relevant breaker. Or remove the screw-in fuse completely. Or switch off the residual current device.
Switch the breaker back on.