Microwave oven (Rhydycroesau SY10)

This is a Cookology microwave oven that is in full working order and fairly new. The only problem is that my elderly father cooked a fish and chip meal in it that should have been cooked in a conventional oven. The result is that it has discoloured the oven and, in spite of thoroughly cleaning it, has a nasty smell. It would only be of use if someone could use any of the working components. I just thought I'd put it on here before taking it to the recycling centre on Monday.