When the front right ring was being switched off from the No. 1 possition there was a loud pop and the oven light flickered once.
Nothing on the hob works now but both the ovens and grill are fine.
I have opened the top of the cooker but can't see any evidence of a flash burn.
How do I go about diagnosis of the fault. I do have a multi meter to check with.

Peterbos, January 2012