Some of the display numbers do not light up and haven't for some months. Now, when I enter the amount of time, the inside light comes on, but when I push the start button, there is a low click and it neither heats nor the turntable turns. I have checked the fuse and it is okay. Is there something else I can check, or is the control panel gone? Thank you for help. This has been a fantastic microwave and still looks great.