Product review (2 stars): The original was a leaking disaster
This valve was not expensive and fairly easy to replace myself, once I figured out that this was the problem. You can do it from the front without even pulling the DW out. There is a fantastic video on Youtube showing exactly how to do it. It looks like it was redesigned a bit from the original - maybe this one won't fail and leak like the old one. Two stars, echoing another reviewer for the fact that I even have to replace it.

The original valve on my DW had been leaking for months and I didn't realize it. It seeped into my tile floor and subfloor and did a good deal of damage. Also, very hard to determine where the leak was coming from without removing the DW and turning it upside down. The DW was also leaking from the front door bottom (also not detected until much too late) in the same front left corner so that had to be dealt with as well.
This DW also had a wire break in the door due to the tar-like coating on the door melting and sticking to the wiring harness. When the door was opened the wires tightened rather than sliding a bit and eventually broke. It actually happened twice before I realized the melting was causing it, then I put a piece of insualtion between the wire and the tar junk. Seems to be okay now (fingers crossed.)

This was a very expensive DW and for all the trouble I've had with it I certainly expected more. LG has not impressed me with quality, let's just say that. I'm now a LOT more familiar with the insides of this thing than I ever thought I would be.