Whirlpool Micrwave, model #mh6150xls-1. My microwave will not heat, the turntable will not turn. I

Question

My microwave will not heat, the turntable will not turn. I can select a cook time and press start and the micrwave will go thru the complete cycle, but will not heatup. What could be the prblem here. I have tested the door switch and they tested fine. Could it be the main control board. Any advice?.