dishwasher leaves about an inch of water in bottom

Hello. I have a GE mdl GSD4060n10ss dishwasher that does not drain all the way out. I have replaced the solenoid and armature pin to no avail. Also I dont believe its clogged because I removed the drain hose and the basin will drain from gravity. Motor spins during all cycles and drain solenoid functions as it should? Please Help.

Hi.

Check the air-gap for blockage, then the collection chamber (#510) and most important - the ball inside the tube in the sump (#454 on the diagram).
If the ball is jammed in down position it won’t drain.

Here are the breakdown diagrams and http://cdn.appliancepartspros.com/images/diagrams/dcache/29406215_2.gif

Post the results.

Simon.