Run machine for a short time then drain out. Tip machine back against wall & look underneath for signs of water leak & trace water back to it's origin. Usual areas are drain pump seal, drain hose either underneath by pump or at back of machine where it comes out. If it has a recyle water function it could be the recycle hose which comes up the right hand side of bowl. In worse case scenario it could be the main tub seal leaking water down shaft into motor. If it is that it will be getting very noisy on fast spin and there will be brown rusty water spray around the inside wall of the cabinet.
Lincoln Appliance NZ, January 2011