Water standing at end of cycle

You probably have a clogged return line to the sink/drain.

If water gushes out from under the overflow cover (next to sink faucet) with the screw cap in place then you have a plug between the overflow and the garbage disposal or drain.

If water isn't gushing from under the cover remove the cover and the screw cap. Look for something plugging the small diameter tube. (Note: If you run the DW with the screw cap off you could have a small gyser.)

If there are no visible plugs in the end of the tube then:

Remove the front cover from under the dishwasher and locate the drain hose. Remove the hose connection from the diswasher (black hose connects to DW discharge hose or housing). Try to blow through the hose, air should easily escape. If it doesn't you have a plug somewhere in the line to the drain.

If the hose is short you can try to clear the clog with a coat hanger, the easiest fix though is to just replace the hose.

1. Find replacement hose
2. cut the hose with a razorblade to leave a 3/8" strip about 4" long.
3. do the same for the replacement hose.
4. using wire sew the two strips together by punching holes in them.
5. wrap the splice in tape and some of the cut hose to make the splice the same size as the original hose.
6. Push the hose under the DW and pull from the drain side to get the new hose in place.
7. Cut-off the splice and attach the new hose to the overflow.

PS> Most of the time the clog in the hose is caked DW detergent and is hard to remove without pulling the hose out.

Hope this helps,

Kal