I'm confused over a replacement part for my oven. It's an IKEA model manufactured by Electrolux. The PNC is
According to Electrolux (and every third party spares site) the correct fan element for this oven is 3970123018 which is illustrated as a triple loop.
However, my old part is a double (not triple) loop and has the part number etched onto it as
397012801. Electrolux told me over the phone that this number is nothing to do with them and yet a product does exist by that number that looks identical to my faulty part. (double loop)
I note that the product number is suffixed with "7" giving
3970128017, but it seems too much of coincidence that the first 9 digits match and it looks the same.
Can anyone explain why the correct part looks completely wrong, but the other supposedly incompatible part looks like the correct one?