Mark T Caledonia , MO March 24, 2019 Samsung washer First replaced the drain pump check valve, after a couple of loads the washer was back to displaying “ND”, so I ordered a new pump. After receiving the pump I drained the washer and the laid it down and did the repair from the bottom, it works a lot faster than removing the top and cabinet that is recommended. Great company to work with and order parts from, knowledgeable, and fast shipping to help get the repair done quickly. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes