Bad motor control board. Look down there and see.
(The machine control will shut down the machine if no tumbling is observed during the initial fill. A bad motor control will cause this and is easy to diagnose)
You will find dark scorch marks on the motor board and probably a blown inline fuse on the board itself, niether of which is correctable without a new motor conversion kit.
Part # 12002039
Motor - Drve, AP4010145