Oven not heating up?

Hygena AHY3300 (Select by Diplomat) S/No.0136653
Power is getting to the analogue clock which is working OK. Clock is set to manual - 'hand' symbol showing.
The 'on' light is not working on fascia panel. The oven is not heating up at all and neither is the grill. The ceramic hob (which works from the same wall switch) is OK.
The oven fan is not spinning. The oven light is not coming on (but may be dud of course?!)
Is the problem the thermostatis fuse, or the element? - or some other cause? Any help/advice apppreciated.