delonghi 6 ring proffesional cooker -

this is a great big cooker for a family.great condition & in stainless steel but has a FAULT........the markings are off the switches............. the rings & grill work perfectly but the oven had gone so i payed to have a new element as i thought this would have solved the problem but didnt? So i have been told its needing a new switch & it will work? so this is the reason for the sale,i believe its an easy fix? 120 0141 5637762