MY EMERSON MICROWAVE OVEN MW8781SB would start on its own after plugging in ,light comes on ,plate rotates,doesnt heat up, and i cant stop it from the stop button...but then again i try pressing few buttons on top like beverages then it would start making that heating sound and would heat up.....but still the stop button would not stop the microvawe with the light still on and plate rotating,unless i disconnect from the power source.PLease help