The dishes don't come out clean after complete cycle.

Has it always been okay in the past? Do you have the manual, and if so, are you loading it properly. I am not familiar with this particular machine, however there are a few things you can check. Make certain all the spray arms are spinning freely. If there is a "tower" that comes up from the bottom, be certain nothing is blocking the center portion of the bottom rack. Run a load as normal, but stop it after a few minutes. Is there water in the tub and are the dishes wet? If not, determine if the water source is on, and the "fill" solenoid is working. If there is water, and all dishes appear to be getting wet, be certain you are getting a lot of "water action" during the wash. If you listen closely, you should hear a sloshing sound as the machine runs. If not, your not getting enough water circulating. The pump may be clogged, or perhaps there is not enough water coming in. Is your water pressure high enough to fill it completely? I hope I have given you enough things to check in order to lead you to the problem. Let me know.

Some diswashers (like this model) are just plain bad at washing dishes. According to Consumer Reports you should get a Frigidaire, cause their modestly priced quiet things that do a decent job at cleaning dishes without pre-rinsing.  Also the Whirlpool Gold quiet series 3 is pretty good but you gots ta pay more for it.  Maytag has gone ta sh.t after Whirlpool acquired them, not that they were any good to begin with.  Thats why they gots ta have so many commercials to get people to buy their sh.t.