Bosch SGS43A42GB Dishwasher stops after filling with water?

Hi all,

Ok i know this is an old Dishwasher but up till know its been working fine.
Problem:
On any of the programms the dishwasher fills with water and then stops to go to the next part of the cycle but nothing happens, i hear a click of a relay and a very low buzzing and then nothing happens.... Any ideas

Thanks,

Kev...