GE microware stopped working

GE Model JET235001 Microwave stopped heating and the light also does not come on, but the timer and power setting show to be working? The unit makes NO noise at all. Could it be a reset fuse? Where is it. thank you for any help possible. This unit is a built in model and I would not mind getting a new one but I can not find a trim kit to fit the current hole and new microwave. Any ideas where to get a trim kit for a new unit if I have to get one? thanks

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I must make a revision to my post. The inside light does come on when the door is open but not wheneve the timer / unit is set to operate.

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I just cut the power cord off and threw mine in the trash. I would like to find something the same size to fit the whole in my cabinets or a trim kit for the new one. Any ideas?