Today was very hot and we had a transient partial loss of power in our house (brown out) Afterwards our Thermador C301ZS oven had a "Cal" message on the control panel and the clock reset to 12:00. The clock then kept time but the control panel buttons would not work. I turned off the power at the circuit breaker and the "Cal" message went away and the control panel buttons still will not work. And the light does not turn on when the door opens. The reset again to 12:00 and still works.