We own a GE dishwasher, Model #pdw7800n15ww. Never has worked well. Having lots of problems with the soap being washed out of the dispencer cup (door opens fine). Found food blocking the holes in the lower and middle spray arms. Cleaned both arms, now tring to remove the lower arm and the Nut Hub Fine Filter, etc parts to clean everything.
[SIZE="4"]DUPLICATE[/SIZE]
Please see the following
http://forum.appliancepartspros.com/dishwasher-repair/153499-removing-arm-spray-lower-assembly-etc.html