I have owned my delonghi dual fuel range cooker fo 5 years. During this time I have had to purchase 4 new function control units that continually burn out despite the oven rarely being used. Having purchased my last one 3 months ago and using the oven once for 30 mins the thermal fuse has now decided to blow. I have never owned such an unreliable cooker in 30 years of being a housewife. I would strongly recommend against purchasing a delonghi oven of any kind. As for instruction booklets or after sales help. Rare as hens teeth!!