How can I fix my dishwasher?

My Dishwasher is running it's full cycle but the soap dispenser is not opening and the machine is not heating the water.

Are these two probelms related - I need to know what I'm looking at. Is it a heater element or themostat and why the soap dispenser?

I have looked at spare parts site but no one seems to be selling heating elements ...... just doap dispnsers and cutlery baskets etc. Any ideas? Or do I just bin it and get a new one

Short lecture required LOL

Cheers
Miranda
owner of broken Bosch exxcell sgs4442/GB 3 years old