Report "My neff side by side fridge freezer has 2 twist knobs in the fridge next to the ice cube making switch. they are numbered from 1-7 when the freezer was empty i had the freezer set to 4 and fridge to 4 since the freezer was filled yesterday i turned the setting to 7 and over night the freezer has started to defrost, is 7 the coldest or 1? thanks"