Product review (5 stars): Houston, we have ICE!
Our Samsung stopped dumping 2 weeks ago.  A quick search on the internet suggested replacing the ice maker or the water valve in the back.  After reading the reviews here, I purchased the ice maker.

Package arrived yesterday and took maybe 3 minutes to install.  I reset the unit (button on side) and waited.  This morning we woke up to glorious ice in the bucket!  Saved a ton of money not having to place  a service call.

If you are having a similar problem with your refrigerator, don't hesitate to buy this replacement part.  It's pretty easy to install and you only need a Phillips screwdriver.