I have an 18 month old DD68-00185B-00 Samsung dishwasher that I purchased from a local appliance store. The repair person came ... loaded up the 3 racks and studied the easy to read control ...

Hand wash or place silicone kitchen items in the top rack since dishwasher detergent can leave a chalky residue behind. Avoid placing any sharp knives on the bottom rack to prevent any injuries ...