Cleaning an oven with 'stay clean' sides

[PigeonPie]

I've tried Mr Google but without success.

We have an Electrolux Insight free-standing double oven (which we've had for a while).

The top oven is fine and reasonably clean, but I just can't get the supposedly 'stay clean' sides in the bottom oven clean with just turning the oven on to full chat for 'a length of time' as it suggests in the manual.

After countless roast dinners etc, the sides and top are just greasy and now when I use it the smoke detector goes off which is driving me mad!

Does anyone have any other solutions to cleaning the sides?

Thanks

You could try cleaning the sides with this electrolux hob cleaner

Thanks, but that's for hobs not for the rough sides of the inside of the oven and I'd be reluctant to use it, to be honest.