Hotpoint Aquarious 1200 wm64 won't wash or spin?

Hi, I have a hotpoint Aquarious 1200 wm64. All seems to be working i.e. timer revolves, cold and hot water fills, pump empties machine and I've changed the motor brushes for new of same make, but motor still dosen't work or operate the drum for wash or spin. Anyone out there got any ideas? I'm stumpped. Me not electrician but normally am relatively ok DIY. Help!