The dishwasher is less than 5 years old, actually this is the 2nd Samsung, the first one lasted less then a year. To repair you have to pull the unit out of the sink area, unscrew an inside screen, take off a side panel, then disconnect 4 hoses and two wire connectors, replace with new part, put it all back together, check to make sure no leaks, push back in to dishwasher counter area.
Unit is now back working!