Re: TOP OVEN / GRILL diplomat adp4520
hard to say really 1 possibility is that the grill has not worked in a while and now your top oven has gone you have decided to use the grill or vise versa, and now your putting 2 and 2 together and thinking that both have gone at the same time best thing to do would be to call an engineer in bit hard to make a diagnosis over the internet with something like that