it sounds like your "drum" is away.basically,,your drum is held together at each "corner" by very strong elastic bands,and when one "snaps",,it will sound like a brick is inside it.you can get a replacement elastic band
but...engineers will charge a fotune for this as they will try n get you to buy a new machine.have a go your self...NO TRY,,NO FOUL
dd, December 2008