Creda Concept Solarspeed 4830(?)

Hi UKWG people,

I’ve got an old brown Creda Concept solarspeed oven. I can’t find an obvious model number, but on the rear there is an “Intallation Notes” sticker which has a number 4830-000770 at the bottom.

It’s the model with the “ceramic” hob, with one halogen unit, one dual ring radiant unit and two small single unit radiant units.
It has a small upper conventional oven/grill, and a large fan oven.
The dual ring unit was replaced some years ago by another halogen unit, when last serviced by the previous owner (the engineer couldn’t get a replacement dual element so put a halogen one in instead).

The problem is that the main oven fan motor seems to have failed. It struggles to turn – you can see it move slightly when the oven is switched on and it makes a slight humming noise.

Two questions
Is it the fan that’s gone?
If it is, is the fan for this model still available (and from UKWG)?

Any help gratefully appreciated..