Is there supposed to be water inside the "tub cover"? There doesn't seem there should be, but it appears to be a sealed piece.
Mr. Fix It for Model Number FAV6800AWW
Answer Hello Mr. Fix It,
The tub cover has a saline solution sealed inside it to balance an unbalanced load. If the water gets out, it will bounce across the room empty. If the water gets out, it cannot be put back in. It has to be replaced.