Pretty much as it says in the title. The microwave is officially kaput, having decided that (in oven mode) '30 mins at 220' translated as 'do that, and then nuke them on full power even though they're on a metal grill'.
Kitchen full of smoke, horrid smell still lingering.
I've searched the archives and microwaving water and bicarb (or a lemon) looks good but the microwave is off permanently now. Any other thoughts?