No ignition no lights no electrics work ?

Is there a separate breaker in th econsumer unit for the cooker? Is the cooker isolator turned on? Is there power at the cooker outlet (If you can plug in a lamp, try it with that).

The fact that you are asking this question suggests you aren't that comfortable with electricity so one would be heavily inclined to suggest you get a competent techie in to have a look.

XXX
March 2016