We have recently moved house and the kitchen has come with a Neff T1571 Hob with no instructions. We have received what instruction manual Neff has but they are pretty basic. The Hob works but when we try to boil something for a lengthy time after about an hour the ring will switch off and a ‘0’ flashes continuously at the top control panel. We then have to wait for ages until we can switch the rinf on again. Does anyone know what this is?