Mod : GLD6560L00SS
Also, I not that of the 3 spinning "heads" the bottom and top spin with pressure, but the middle barley turns.
okay great, you need to check the drain pump for obstructions. this is located underneath on the left back side and you may need to take the dish washer out to access it. they are difficult to reach, its part # XXXXX on this diagram.check the drain hose for a blockage also. if theres no clog anywhere the drain pump is weak and needs to be replaced.theres a link below to order it if needed.
drain pump link, http://www.searspartsdirect.com/partsdirect/part-number/GE-Parts/Dishwasher-Parts /WD26X10023/0022/363/Model-GLD6560L00SS/0432/0130000?keySuffixId=NA&pathTaken=partSearch&pathRender=modelComponent&documentCompId=G6090334&diagramPageId=00005&productTypeId=0130000&searchModelNumber=GLD6560L00SS&subCompDesc=Motor-pump%20mechanism&brandDesc=GE&modelDesc=DISHWASHER&blt=11&shdMod=GLD6560L00SS thanks, Bryan