The fan works, which suggests power is getting to the oven and that the oven swiych is at least partly working
It could be the heating has failed, whihc would mean a new element or that the temperature controller has failed
A genuine element is £22. A compatible element is £9 at
http://www.espares.co.uk/parts/cookers-and-hobs/electrolux/eob5630x-uk/p/1092/15/0/619613?k=element
or via a shorter link
http://tinyurl.com/d4v82a
You will need to check the old element has failed first.
John
January 2009