LG Dishwasher Not Draining (Repair)

How to deal with an OE or DE error code on your LG dishwasher that won't drain. This specific dishwasher model is LDF7551ST.

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[nocturnus]

This is how all repair videos should be. PERFECT, thank you.

[klantuan]

Thank you for your clear and detailed instruction, and of course your time and work to produce this hi-quality video. Save me lot of money and anxiety.
Update 8.22.2023: Received the replacement water pump for $35 US on AMZ. Replaced on the same day using your instruction. Got in installed in less than 15 mins, but if including other preparation and cleaning it will take about 1 hour. Ran multiple DRAIN tests which passed 100%. Very happy and thankful for the video.

[macmaster]

Thank you for this video. Fixed my dishwasher in 20 minutes with this new pump assembly and its draining better than ever and going through the full cycle after the dreaded DE error code. As many others have stated in the comments, you do not need to take the dishwasher out of its spot to do this fix, you can simply take the baseplate off and the pump and all the hoses are fully accessible from the front.

[rking]

thank you so much. it worked! my wife loved me. 6 months without a dishwasher. I wanted my boys to know how to wash and I wasn't in a rush to by another one.

[LulluTube]

Great video and instructions. I had a OE error and thanks to this video I could tell the drain pump was going bad on our 5 years old dishwasher. These pumps seem to fail between 3 and 5 yrs. However, I was able to purchase just the pump (about $21) instead of the whole housing with the pipes and clips (about $43). I was also able to replace the pump without having to remove the dishwasher. A bit tight but can definitely be done in about 10 minutes. Thanks a million for the video; it saved me a bunch of $.

[nuksyed]

Thank you, this worked for me. Cost me 90 CAD in parts and saved me 160 CAD in labour. It is a pretty easy fix. Things I would suggest others to watch out for when doing this work is to be careful when moving the dishwasher out if you have wooden floors, I scratched mine up a tiny bit. Also, leave the dishwasher such that the door is on top. I made the mistake of leaning it forward which messed up the stands in the front, so I had leveling issues after putting it upright again. Finally, it water starts leaking near the door after this repair, you need to level the dishwasher using the knobs on the bottom. This happened to me and had me worried, but it has been fine after leveling it.

[Artingv]

Thank you for this Video I have the same dishwasher and its was doing the same thing yours was doing, after watching your video I went on Amazon and bought the same part you did 40 bucks delivered in 2 days, pulled out the dishwasher and replaced the pump put it back into the cabinet and Boom works great now. Thanks you Thank You I never would have attempted this without your Video You Rock... Thanks

[tech]

I watched another video and the technician said that when the drain pump is operating and you hear a high-pitched whine, the motor is shot. I heard the wine and your video and recognize that, thus I made this comment!
good video. Thank you for posting this. It’s very helpful🙂👍

[bryangrayhek]

Thanks for the video! I received the dreaded "DE" error on my LG dishwasher over the weekend. Started googling found your video ordered the drain pump from Amazon and it was here on Monday! Gotta love the Internet! :) Thanks to folks who mentioned the pump could be replaced by removing the kickplate. I pulled mine out about halfway and propped it up on some blocks for a little better access. Pump has been replaced and the dishwasher is chugging along again. DIY feels great especially when you save money over having to just replace the dishwasher!

[blaineclick]

Thank you for sharing this. Dishwasher stopped working Sunday before Thanksgiving and I thought my wife was going to have a melt down. Ordered the part from your link and by Tuesday we were all fixed. You saved Thanksgiving!

[montysdad]

Excellent video describing changing the pump assembly. I bought only the motor on Amazon which saves $100 approx. Once you have removed the pump assembly, a simple twist disengages the old motor from the assembly.. Note that there is a rubber washer which should be carefully removed and cleaned and dried. I strongly suggest coating the washer with a thin layer of plumber's grease and it will make it much easier to twist the new motor into place. Twist the new motor into place, re-install the pump assembly as in the video and you are good to go. For solved. Dishwasher back to normal. Very pleased!!

[sedoniaraqs]

Thanks, this worked great, except I struggled for about an hour to fix it in place like some people mentioned. It almost worked, but it did not allow the working room to wiggle the large hose clamp into place. We pulled the dishwasher out but instead of flipping to its back, put a brick under each adjustable foot and were able to easily finish the part installation quickly. This allowed us to leave the drain hose connected to the drain pipe.

[Gheorghe]

Just replaced mine after watching your video. Although I could hear the pump working, was constantly getting the OE error code a few minutes into the cycle - guess it wasn't working well enough. I order only the pump (without the housing) from Amazon for $24: LG EAU60710801 BLDC Dishwasher Pump Motor Replacement DC 22V
And two days later I was able to replace the pump without removing the dishwasher from its place in 15-20 minutes. It's very tight and no much room to maneuver, but just enough to do it. As others said, the new pump does not come with the back rubber ring, but you can remove it from the old pump. Also, make sure you have a towel handy as few ounces of water will drain out as you remove the old pump (if you have hardwood in the kitchen you might get yelled at). Thanks again for your video - I'm not a handy person and couldn't have done it without your video!

[jaymonahan]

Thank you! This gave me the motivation and courage to just do this myself. Very easy to do. Just like you described.

[kathylowreysmith]

Very helpful! Thank you so much! It didn't take me very long to replace it at all and works like a charm again!

[mariaalves]

Thank you very much for your video! I changed the drain pump myself, and my dishwasher is working perfectly. Thanks 😊

[cwbetb]

Just had the same issue, replaced the pump and works! I was able to change mine without removing the dishwasher, it's not that bad to get to, thank you for the informative video!

[FreakingJenius]

Great video. Found it after doing the same work, and can confirm this is step by step exactly what to do. The only thing I would add is that when you disconnect the drain line that runs from the dishwasher to the sink or drain spot, I used my shop vac to suck it clean. With the drain hose in the shop vac, seal the gap with a towel to get all suction on the drain tube.

[Mumumama]

Excellent video! Thank you for showing a way to check the clogged drain hose issue. That helps deciding what the issue is. Great!

[bradgrant]

Thank you for this very informative video. I suffered from the diagnostic problem as you indicated. After purchasing a new pump and following your instructions, my dishwasher is working again. Thanks again for your help...