Product review (5 stars): Great price on a essential part!
I purchased this as a back up, so far I've been able to keep our Samsung Stainless Steel Dishwasher going through the NO START flashing code: low level water sensor by pouring about a quart or more if possible of White Vinegar into the bottom of it and letting it sit for an hour or two - three.  Then running it through a cycle.  It's refused to cycle normally on 3 occasions where it's filled and drained and filled and drained and filled and drained over and over and over... you get the picture.  When it does this apparently hard water scale and food deposits etc loge into this sensor and cause it to NEVER cycle into an actual wash cycle, therefore it fills and drains constantly.  White vinegar has worked for me every time.  I keep this part for the day white vinegar stops working for me.  Good luck!  P.S. It works well to descale coffee makers and flash hot water tanks etc.  just be sure to run the coffee maker until all the vinegar is out!  Or you'll have the WORST TASTING COFFEE you've ever had.  (Vimegar causes milk to cuddle).