Bought dmr78 dishwasher ($1100) Worked well for first 6 months then made grinding noise. After looking on Internet we found hundreds of others in our shoes who were frustrated and feeling helpless.
Many had it fixed only to have it happen shortly after again and again. We phoned Samsung and of course got a call center and the rep said he had no idea that model had that problem and we should call a repair tech at our own cost.
This product is no longer available for sale and obviously with good reason. Since Samsung will not stand behind a poorly designed product I will not ever buy from them again.
Review about: Samsung Electronics Dishwasher.
Monetary Loss: $1100.