Because they are so similar, dishwasher designs are much simpler to master than either washers or dryers. Hot water is sprayed on dishes stacked in a 24" wide box, drained and heated by an element to dry off the water. All designs have many similar problems. Clogs from debris scraped off of plates is the biggest culprit.
Following are links to the most popular designs, Whirlpool, GE and Electrolux. Imports, in order of popularity such as Bosch, Samsung, LG, Meile and Asko are slowly coming into the market.
Learning to Decipher Kenmore's Root Manufacturers. Since Sears represents 50% of the appliance work and does not manufacture anything, study the Kenmore Codes pdf link to learn how to tell what you are really working on. For an in depth discussion of brand confusion see my help page>>.