smeg uk80mfx1 oven?

I have the above oven that initially would not work in the fan setting but would work to a limited heat (approx 150DEG) with the top and bottom elements.

Then the grill failed however it would flick on an off if I wiggled the functions knob.

Now all the electric functions cooker won’t work apart from the gas igniters and the digital clock.

Have I got a number of issues of one common problem?

Please help
Kind regards

sumps

No need to double post, if someone knows the answer they will reply. mod1