Product review (5 stars): Third time's a charm.
So, dishwashers really aren't that hard to work on. But dang, troubleshooting the problem can be tough. First try was a new dishwasher inlet valve $32.61. Nope. Second try was a new pump and motor assy. $178.95. Nope, and thanks for the tip LG repair guy. :(  Finally, this dishwasher float assembly $20.20. Yay. we have a dishwasher again after one month of hand washing.

By  the way, symptoms that you need a new float are; it runs continuously, even with the door open. The water is pumped out of the bottom, and if you dump another gallon or two in, it will drain out too.

If this is your issue, you can buy this new piece, or even just clean it. I don't see anything here that would really break.

And I'm glad I didn't buy "the one with the water inlet as well" that would be a waste of money.

Oh, and avoid LG dishwashers..