Can you get the smell out of a chest freezer from spoiled meat?

My daughter and her husband went on a trip. And when they got home the outlet to their chest freezer in the garage had shorted out. They lost all the content in the freezer and they are thinking they are going to have to get rid of the freezer because of the horrible smell now. Is there anything they can clean the inside with that will get rid of the smell left by the spoiled meat?