Based on the parts list here:
http://www.leisurespares.co.uk/files/rm42004201.pdf
there are two electrical elements: one for the 12Vdc supply and another for 230Vac supply. It seems weird that both have failed at the same time.
Are you sure 12V and 230V is reaching the fridge terminals correctly?
Manual here:
http://kitchen.manualsonline.com/manuals/mfg/electrolux/rm_4201.html?p=1
acp, April 2017
