Michael G Prattville , AL August 15, 2015 Appliance: Samsung Washer WF218ANW/XAA-0000 Samsung Washer Wf218anw/Xaa-0000 / : The samsung washer machine showed an nd error it was not draining error it would drain some but not all the way and we would have to fininish draining it through the drain hose. How to replace Pcb Assy. I inspected the drain lines and drain filter. I inspected the motor, and it was not locked. I ordered the drain pump. Just because it was the cheaper between the two parts, drain pump and pcb board, and it did not fix the problem, so I got the pcb board, and it did fix the problem. For you folks having the same problem, here is the way you can check your drain pump motor and save yourselves some money. I had ordered a repair manual. I did not get it until several days after the parts arrived. My wife wanted the washer to be fixed, so I could not wait for its arrival. The manual stated for my pump it was approximately 174 ohms between the terminals on the water pump, so this bit of info that may save someone else some time and money. Last thing to say, I am very impressed with appliancepartspros.com. They have a 365 day return policy. You can always call or chat with them online. The part was delivered in two days. I definitely had a positive experience dealing with AppliancePartsPros.com. 7 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes