Our 6-years old microwave PEB1590SM2SS stopped working sixteen months  ago and a week ago for the second time with the same symptoms. Very lightly used, not even every day. Purchased together with an oven of the same design, picked GE because our original microwave lasted for fifteen years and was still working, it was just the time to get replaced. Last time the microwave broke had to fix it since this model (and design) was not available any longer, and replacing both microwave and an oven did not make sense. Looks like quality these days is no comparison to what it used to be. Lesson learned, no GE next time.