Thanks to Owner-Manuals.com! This manual was exactly what I needed. As Amana was purchased by Maytag and later by Whirlpool, there was no way to receive it from their websites. I was lucky to find this resource.
A comprehensive Operating and Service Manual. All schematics are complete and easy to read. The PCB drawings and complete parts list are very helpful. I would definitely recommend this manual.
Text excerpt from page 30 (click to view)
The dishes are not clean (poor wash). q The baskets are too full.
q q q q q q q q q
The dishes have not been arranged properly. The spray arms do not rotate. The spray arms are clogged. The filters are clogged. The filters are not positioned correctly. Not enough detergent has been used or it is unsuitable. The detergent is old or has gone hard. The salt container tap has not been properly closed. The washing programme selected is too gentle.
The dishes are not quite dry q The dishes have been left too long inside the machine.
The door is difficult to close q The dishwasher is not levelled out or is not properly built-in.