Dishwasher doesn't circulate water?

Electrolux ESI6241 dishwasher does not circulate water to spray arms. Has 230v across two cable at motor, motor hums and gets hot, pump seems free and I can turn motor quite easily with screwdriver on end of shaft, but it doesn't run. Have changed starter/capacitor with no difference. Is it likely the motor has failed, or could there be something wrong somewhere else - maybe with the two other cables connected to the motor?
Thanks Michael