How to Troubleshoot & Replace Samsung AP4202690 / DC31-00054A Washer Drain Pump

Replaced pump; cleared out drain lines but still receiving ND code. Kicked machine a couple of times and it would drain then not drain. Suspect bad control board. 

The washer would not drain the water during the spin cycle. After I decided the washer drain pump was the most likely cause of the problem I drained the water out and went to the Samsung website. I then viewed a video of the repair. It was very straightforward and seemed to be something I could do myself. I ordered the washer drain pump and also a door lock. Both parts were delivered overnight and by the next afternoon it was mission accomplished! My wife say's the washer must have been gradually getting less efficient because now it winds up like a 747 instead of a Piper Cub! Thanks for a very well designed washer that every man can fix. Thanks for the video. I will buy Samsung appliances every time because of the quality and craftsmanship designed in to each product. Steve G, Extremely Happy Customer! 

I replaced the drain pump motor. This also took care of the "suds" error I was having when the washer would not drain properly . 

Thought the hum might be main motor, so disconnected that in back via its wire harness clips. Still hearing hum, removed front panel, found hum to be drain pump - felt it while hearing the noise. Took drain pump off, found broken impeller. Ordered new drain pump, installed it, all is well now and working normally again. 

Called our local appliance center and found out they did not have the required replacement pump in stock and would have to order it. I was also told it might take five days to get one. with five grand-kids and our daughter still living with us - we would be buried in laundry. So I decided I better try to do it myself. I went got on my computer to search for the part and actually landed on AppliancePartsPros.com by chance and found the necessary part without much trouble. I then called them to see if I could pick up the part from them myself. The person told me they don,t have any stores locally and They would have to ship it to me. OK! When can I get it? Next Day Shipping for $24.95 and $52-something for the part and voila (pronounced walla). Was able to pick up part from FedEx office and had washer running by noon the next day Thank You, ApplincePartsPros and Fed Ex for a job WELL DONE. Russ 

Removed and replaced the pump and housing. Buy the housing too because when you remove the screws the plastics threads come out too. 

I had to remove the front of the unit. Was then able to access the hoses to check if any were clogged, found some debris. But nothing clogged. I then removed the pump motor. Pulled it apart and found the magnet on the shaft split the full length. (Seems to be a common problem) installed the new one. And all is good at this time. 

Unplugged the washer, shut-off the water hoses, and removed the back cover plate from the washer. The drain pump on this model is located in the rear on the right side - very convenient to access. Installed a large pair of hose crimping pliers on the inlet hose to the drain pump so I didn't have to drain the water from the tub. Removed the drain pump to check it for debris. Found that the pump impeller was stripped on the shaft, the shaft seal in the motor had failed, and the motor was filled with water. Ordered a new drain pump assembly which arrived within 2 days. Swapped the drain pump plastic housing from the old pump to the new one. Installed the new assembly back in the washer. Removed and cleaned out the drain hose. Hooked up all connections and test ran. No code and more water draining now than had been in a long time. Note that it took some repositioning of the hose clamp on the inlet hose to get it to reseat on the inlet neck of the drain pump. Had a small leak develop after the first load was run. Very easy fix considering the manual said to call a service technician! 

The video on how to replace the pump covered rear application. Unfortunately, the pump I had to replace is located in front. 

After researching it was determined the drain pump motor had burned out. Ordered a replacement through AppliancePartsPros.com. The website included a video on replacing the pump on a washer nearly identical to mine. The video was very helpful in identifying all things to look for in extracting the old pump and reinstalling the new pump. The new pump installation took a little longer than recommended but that was mostly out of caution. Since the new installation the washer has been running fantastic. It appears the old pump, when working, was not draining completely as there is a noticeable difference in draining for the new pump.