I have a Whirlpool Duet Sport washer that sometimes doesn't drain the clothes well, and shuts off. No error codes . I hit drain/spin and finishes the job. Mine is mod #w8300s. I see where one can access diagnostic codes on later models. Can you on this one? Thanks

Look at this: https://dl.dropboxusercontent.com/u/8010163/Whirlpool%20Duet%20Front-Loading%20Automatic%20Washer.pdf
What you will need to do is to clean out the filter which may be on the front bottom right on this machine; I'm not sure, but you can look until you find it. It's a big plastic plug that you unscrew to get to the filter.