I agree with all suggestions here, especially wiping all available surfaces with vinegar water. I, too, was going to suggest putting it in a closed container and stuffing around it with wadded newspapers. They say that will help bad odors in a freezer/refrigerator that has been unplugged and then food rotted inside. Your local sewing machine place may know of a good solution. Seems my 4800 always comes back from the shop looking fresh whatever he does to it!