Bosch Maxx wfl 226L Not heating the water and trips out the power supply?

Hi, The machine appears to trip the power supply when it starts to heat the water. So could it be that the heating element has failed/open circuit and this is the problem?
Other parts of the program ie spin , drain , cold wash all work. Can i ask, is it easy to replace the element if this is the problem.
Thanks for any info
pete