Gas cooker?

Yesterday my Rangemaster 110 went kaput. The gas to the hob and griddle still works but not to the overns or grill. All electrics have failed (I suspect teh cooker isolation switch on the wall, but why can I get gas to the hob and not the oven (no hiss!)? I sthe supply to the ovens and grill electrically regualted or pumped? Does this indicate that if I fix the electrics all of it will work?