I have Kenmore range hood microware Model number 592.85609-0 that we've had less than a year (actually bought 1.5 years ago but took delivery last spring). It was working fine when we last used it yesterday. Last night it woke us up with intermittent beeping. The display reads "-SE-" and the entire keypad is dead. I tried unplugging it for a few hours but it had no effect. I can't find any reference to the "-SE-" code.