Microwave Turntable Operation
Turntable microwaves have a glass tray that sits on a plastic support ring, which rotates constantly during any cooking selection, including models with convection cooking. The glass tray should always be in place when microwaving.
The turntable can turn in either direction when the microwave starts cooking. For example, the tray might rotate clockwise one time and counter-clockwise the next, or turn clockwise twice in a row. Electrical circuitry causes this direction change, and is normal. It is also normal for the tray to change direction when the cooking or defrost cycle is interrupted (paused).
While the turntable is turning, it is normal for the tray to hesitate, jerk, drag, or pause.