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So F70 means your dishwasher is stuck in "flood mode". What that means is that water has worked it's way down into the base pan below the dishwasher tub causing the unit to do nothing but drain. This is normally caused by the drain being clogged or too many suds in the tub causing the tub to overflow a bit. Either way, you'll need to uninstall the dishwasher and tip it forward at a 45 degree angle to drain the water out of the base pan. Be sure to put a towel under the dishwasher first so that the water is soaked up in the towel instead of going all over the floor. Once you've drained all the water out of the base pan, reinstall the dishwasher and try again. If the issue comes back, you'll need to uninstall the dishwasher and tip it on it's back. Remove the bottom access panel below the dishwasher. There is 1 screw in each corner. Once removed you'll see the pump assembly and you can try to locate a leak.Now if you don't want to do all this work just to get your dishwasher working again and you have time, let the dishwasher just sit unused for a week and the water in the base pan will evaporate as time goes on and the dishwasher will start working again after a week.
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