Hi, Hilde! The microwave oven light should illuminate while the microwave is operating or door is open. This model allows you to either turn the audible off or on under the user preferences. You can find instructions for doing this on page 17 in your manual. If you need additional assistance, please contact us directly at 1-888-203-1389 M-F from 8a-8p or Sat from 9a-6p EST. ~ Brandi