House was fully rewired 5 years ago, and not 1 prob to date, not even a trip.... Tonight Ive unplugged everything.. Switched oven on, the light and hood extraction work, then as soon as I hit the oven or grill setting it trips.... Switched oven off at isolator, plugged washing machine in, switched it on and it tripped....RCD tripped both times. Now this is telling me, either both have a fault (this is what Im struggling to take in) or faulty RCD??? Gonna have to start spending money, but on what....element for wash machine, or RCD? You can always fit a RCD, they arent too pricey. Cheaper than your washing machine element proabably. And if theres an electrician in the family..... shouldnt cost much at all. Or maybe hes got a spare RCD knocking about??