Both Ovens Stopped Working

[NorthBristol]

Hi, I have a Creda Contour Electric cooker. It's old, but it's been reliable up to now. Today, both ovens have stopped working. To be exact:
Working: hob-all rings, grill
Not Working: Top oven (same compartment as grill), bottom oven, fan, clock
Anybody know where to look first?
Thanks

 

[assuhors]

I would check the clock isn't on auto for starters.

 

[NorthBristol]

Yeah, I've fought with the clock before. Clock doesn't affect the top oven though.

 

[jj4091]

Possibly a burnt common connection to all the non functioning items at the rear of the cooker.