Beko D2731FW Dishwasher: Changing the Heating Element?

Hello,

My timer has stopped turning at certain points of the dish washing cycle. So after investigation, I noticed that the water inside the machine was no longer getting hot. I think the timer get stuck as it waits for the water to reach a certain temperature. Therefore I think the heating element needs replacing (unless someone else has any other ideas??? Thermistor perhaps?)

So my question is: How can I get inside and replace the element? Is it an easy job to do?

Many Thanks!