Key is M O N E Y....... If you get slow, and only calls coming in are dishwashers, then work is work. I agree, first time or two on any product, and you can almost count on having more time in it than it seems like its worth. But.........Anytime you fix something finally, Consider it the same as training. I don't like the new dishwashers either, but I'll fix them to get money.
Had an LG the other day, Had to remove it to fix float switch. Now remember when it took like 2 minutes to repair one on a Kitchen aid or a whirpool or Ge?? Now, it just takes FOREVER> Just charge more money for the labor. And since this is the only crap their making and everyone is buying it, you have to service it. Plus, if a customer finds you don't fix dishwashers and some one else does, they will probably call them for everything instead of you the next time.