Does any one know how I can find a list of Model Numbers or LEISURE built in Hob - it is separate from the oven. I need the Manual to find out how to Unlock it. Even a list I can trawl through would be useful - I have been to the Leisure Website but there are pages and pages of models that are not indexed by equipment type so is a needle in a hay stack ! Even if some knows what he Hob model numbers start with that would be useful as they seems to be 2 or 3 letters then a number.