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Many of the manufactures today have gone to a plastic corrugated drain hose on there dishwashers. These hoses have been trouble for leaking!!. Where the drain hose makes a bend it seems to get weak and splits = water on the floor. If you have a leaking water problem, especially if the dishwasher still leaks when the dishwasher is not in use complaint...check for a cracked drain hose.
Removing the dishwasher access panel help so you can check the hose.