DIY Dishwasher Tune up. Don't buy a new dishwasher! Four easy steps that will get your dishwasher really cleaning again and possibly even stop a leak! Totally fixed the leak in mine and my dishes are getting clean again! Hallelujah!
Dishwasher Tune-Up: 4: Last step. This one is easy. Run the EMPTY dishwasher with a 1/2 cup of CLR cleaner. (found with the cleaning supplies) This helps to remove anything you missed in steps 1-3. And just to be safe, run again to be sure all the cleaner is gone.
Simple maintenance will wipe out 90 percent of dishwasher problems. This article provides solutions for three common problems: the dishes don't come out clean, the dishwasher leaks water, and the dishwasher won't start.
How to Diagnose a Dishwasher Leak | DoItYourself.com