Kenwood CK446 range oven and grill faults

Hi there, i joined up to look for info in the past for a previous issue with but ive now got another fault on my cooker.

The faults are on the small conventional oven and grill.

The small grill will still get hot but it will either trip the electric after so long in use or when we turn the grill off.
So i took a look at the switch and cleaned it up and the electric would no longer trip when turning the grill off but will every time the grill is used after a length of time.

Other fault

Also since i had a look at the switch and put the cooker back together the conventional small oven will no longer heat up at all.
I thought i maybe got the wiring wrong on the selector pins but i have checked against a wiring diagram i managed to find which im pretty sure is for this type of cooker and it looks correct.

The conventional oven i believe uses the top duel element and also one in the base. It looks to me like the top inner element is used for the grill and the outside part of it is used for the oven function.

I thought i would replace the switch which looks like this

https://www.4kenwood.co.uk/cooker-oven/ck446-c9y0kw009a/oven-function-selector-switch-small-oven/product.pl?pid=957949&path=590749:606541,261565&refine=function+selector+switch&model_ref=214354

however when i recevied the switch it looks the same as this one

https://shop.ukwhitegoods.co.uk/cs161-de-longhi-cooker-oven-selector-switch

So both switches look completely different and they seem to have different pin numbering so i am unsure if i can actually use this new replacement part on my cooker.

Has anyone got any ideas?

Happy new year!!