My double grill stopped working as only one element is getting hot on the double grill setting.
Both elements seem to be getting hot when I select top oven.
If you are certain that both elements are OK, and the only real way to do that is to test them with a megger or multimeter then the most likely cause is a failure of the top oven switch pack.
Part number 6201720.
Be sure to isolate from the mains if you intend to have a look yourself.
Which element is getting hot, the left or right one?
Left element is the one that comes on when ‘single’ is selected. That does point ot a top oven selector switch failure. I would still suggest testing the right hand element electrically first.
Its much easier to change a faulty element that a selector switch.