[Herald1360]

If you can round up a mains light bulb, holder and some wire you could try connecting the bulb across the connections to each element to see if power's reaching them when the oven is supposed to be on. If it is, the elements are dead, if it isn't you need to look at the control switch and wiring.

This would be much easier with a meter- a cheap one can be had for not much more than the aforementioned test lamp setup.