The drive coupling and turntable support serve to make your microwave's turntable rotate, thus ensuring your food is cooked evenly throughout.
Pieces of food can sometimes end up sticking to the turntable support. When this happens, the stuck food will get cooked over and over again, which result in sparks being produced. We recommend cleaning your microwave's interior from time to time.
Drive couplings can sometimes fail to engage properly, or not engage at all, in which case the turntable won't be able to turn.
Turntable support or drive coupling on your microwave damaged or broken? Order a new one on our site. Many models to fit your appliance available.