Fix reqd for Hoover Quattro 1300 System 1300 washing machine?

Rotating tub is free to move.
Have removed rear panel and drive belt OK.
No burning smell from motor.
Makes appropriate noises (e.g. water runs in when programme selected).
However doesn't turn.
Possible clue - when I removed the front filter it was clogged up with old labels and crud. Have cleaned it but still won't run. Would this be a contributory factor ?
ANY IDEAS OF WHAT TO DO MUCH APPRECIATED !!