If your oven is not heating up properly, it could be that you need to replace the heating element.
Most electric ovens have more than one element. Electric multifunction ovens can have 3 elements, one that surrounds the fan at the back of oven, one located in the base of the cavity and a grill element.
We would recommend seeking the advice of a service force engineer before attempting to replace one of these, however, if you feel you are able to undertake this task, you can purchase a replacement element from https://shop.electrolux.co.uk/Cooking/Cookers-Ovens-%26-Hobs/Heating-Elements/c/40 and prices start at approximately £30.
Call now to get a free domestic appliance quote.