Microwave shut off

Mine is doing the same. GE site says microwave may be overheating due to blocked vents. I didn't find any blockage. If I reset my clock (the display goes blank when the oven shuts down) the oven works again. However, after a few uses, it does the same thing. Not sure if this helps. We bought a Kenmore oven today because we figure it will cost too much to fix the GE compared to a new oven price.

try to checked the fuse if its blown.and replace a new one,check also the power cord.