6 Reasons Why SAMSUNG Dishwasher Is Not Draining

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There are many customers who complained about Why Samsung dishwasher is not draining water or didn’t finish a cycle.

Or maybe some water sitting in the bottom of the dishwasher. In this article, we will show you the most common reasons why this happens and how to fix it.

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On some models, there are 5C, SC, 5E, SE error or OC, 0C error might show up on the display.

All of these error codes mean that your dishwasher unable to drain water completely. DELICATE light flashing on the panel also means long drain error.

Here is list of possible failed parts and what you can do to troubleshoot your Samsung dishwasher when it’s not draining.

Drain Hose

Check dishwasher drain hose connection to the sink. Make sure that the hose is not kinked.

If the drain hose connected to the garbage disposal, make sure it is clear of food waste and not clogged.

If the Samsung dishwasher drain hose connected to newly-installed garbage disposal, check to see if the knockout plug has been removed.

The Knockout plug needs to be removed in order for the dishwasher to drain.

Check Valve

A check valve prevents water from returning to the dishwasher once it’s been pumped out.

If the check valve get stuck in the closed position or just been damaged, the water won’t drain properly.

You can try cleaning the valve, but if the problem continues you should replace the check valve.

Turn the water on to the sink. Let it run for about 30-60 seconds, and then verify if the sink drains.

If it does not, the issue is with the plumbing and not with the dishwasher itself.

Drain Filter

The next step is to check the drain filter. Drain filter located under the bottom rack.

Remove bottom rack and turn filter counter-clockwise. Now you can pull the filter out.

Drain Pump

The drain pump uses an impeller to force water through the drain hose if the pump motor is not working the water won’t drain from the dishwasher pump.

Pump motors can fail both electrically and mechanically.

You can use a Multimeter to determine if the motor is failed electrically by testing for continuity.

If the motor test negative for continuity it will need to be replaced.

Drain Solenoid

Some models of Samsung dishwasher have a drain solenoid valve that opens to allow the water to drain. If the solenoid fails the valve will not open.

As with the pump motor you can use a Multimeter to test the drain solenoid for continuity to help determine if the valve has failed electrically or not.

Water Inlet Assembly

When the water is pumping out from the drain pump, it goes through Water inlet Assembly and then to the drain hose.

Sometimes small objects or hard particles getting stuck in there.

So if you check drain pump, drain hose and everything else, but still not draining, check this assembly as well.

This assembly located on the left side of the Samsung dishwasher.

Just pull the dishwasher out, remove side cover, disconnect grey hoses as it is shown on the pic below.

Just in case put the towel under the hoses, when disconnecting, otherwise, water will leak into the drain pan and trigger flood sensor.

How to check the drain pump of Samsung

  • Pull the lower rack out.
  • Remove the cylindrical microfilter.
  • Wipe any moisture or water from the filter.
  • Remove the drain-pump cover by pushing its handle in the up direction and pulling it out.
  • Check the impeller to make sure its in good condition and try to spin the impeller by finger. Then, remove any dirt from the pump.
  • Put the drain-pump cover back into place, and then press down until you hear a clicking sound.
Samsung dishwasher drain pump check

What to do if drain error light shows up, but no drain issue?

Do you have Samsung dishwasher DW80F600UTS or similar model, that has “Drain error” message, which is 5C, SC, 5E, SE or ND , sometimes during mid-cycle, but at the same time, it might running and draining absolutely fine?

Or maybe the dishwasher stops every 9 minutes?

You might have an issue with Drain Sensor or Samsung Dishwasher ECS Sensor.

This sensor over time gets dirty and all that you can do is to clean it or replace it with a new one. You can get it here

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32 thoughts on “6 Reasons Why SAMSUNG Dishwasher Is Not Draining”

  1. I have a Samsung dishwasher, that us flashing “LC”, and the drain is continuously coming on. I know LC means water leak or moisture. I took out the strainer and cleaned it. The drain at the bottom, under the strainer, will come on, empty, cut off then a small bit of water comes back in from the drain opening, then it kicks on again.

    Suggestions? Any ideas?

    Many thanks.

    • What the model number of your dishwasher? Check float switch inside the dishwasher. If it’s stuck in the Upper position and will trigger LC error code. Cause float switch sits in series with the flood switch. if one of them disengages, it will trigger LC error code

  2. I have samsung dw80f600uts. Found water leaking from front of dishwasher. Water will partially drain out when I drain manually (holding start for 3 seconds) so motor is working, but I have to do it like 3-4 times to fully drain all the water. Tried a new cycle, and I can see it draining out the hose but 20mins in it shuts down, and flashes Smart-Auto and Heavy. I checked for hose blockages, cleaned the filter, checked for motor blockages. What am I missing?

    • There is a partial clog in the drain line for sure. Did you check the drain hose where it’s connected to the sink? Did you check hoses on the left side of the dishwasher (see the picture in the article)?

  3. I have tried every one of the six. The only thing I havent done is replace the ECS. I took it out, cleaned it, put it back in. Still does drain or complete final cycle. What I do notice is that when it went into drain cycle, I would always hear a prominent click, and the drain pump come on. I do not hear that prominent click, and do not hear the drain pump come on.

  4. Hi guys, so The water does not drain from my dishwasher. I’ve only been using it for one year but just ran out of warranty. I replaced the check valve. I cleaned the filters and the entire machine thoroughly.I also checked the hose connected to the sink and everything is clean. I was able to do this while the machine was open and I just unscrewed everything that I had access to at the bottom of the machine. I’m nervous about taking the machine out of its space and moving it upside down because that has electrical connections and other things that I know nothing about. I saw a couple of videos online but they are not specific enough for me and they assume that the person knows about electrical connections and water pipes connections and I do not. If you know of any online videos that Can explain it to me like I’m a five-year-old I would really appreciate it. And by the way I did have one plumber come in and check it out and tell him if he thinks it’s the pump and I should just buy a new machine. Since the machine is so new I thought I would buy the pump and maybe hire somebody to put it in but it turns out that’s too small of a job for a company to take on. Anyway.Many thanks

  5. Thanks for this page. It is incredibly helpful. My Samsung dishwasher is draining, but after several hours I will find water in the bottom of the unit. If we do not check it and manually and drain it by pressing two buttons, it will overflow eventually onto the ground. The drain line is clear and connects to our disposal. I am guessing since the drain motor works that it might be the check valve. Thoughts?

      • Thanks! I received the check valve for my SAMSUNG DMT300RFS/XAA. The part number is DD66-00019A. Unfortunately is was smaller than the one I removed from my machine. It appears to be the right part number. Should I order another one or move on to the water inlet assembly? Thanks for your help.

  6. I am getting 5c error on DW80R9950US dishwasher. I checked the drain hose, filter, sump for clog. Most of the water drain and I can see water running thru the sink/garbage disposal but only a little of water ( 1/2″) left in the filter/sump pocket. What could be the problem ? Thank you.

  7. I am get 5C error on DW80R9950US. I checked the drain hose, the filter, the sump for clogged. It drained most of the water and I can see the water draining thru the garbage disposal/Sink but it still have just a little bit of water (1/2″) left in the filter/sump pocket. What could be the cause ? Thank you.

    • Partially restricted drain line. Check drain hose connected to the sink and also read the article again, pretty much everything covered there

  8. I have a “dC” code on a DW80K5050UG and Samsung cannot tell me what that is.
    It starts fine by draining which I can see is clear water. It sounds like it then fills with water (which it does b/cit also drains it when I cancel) It then clicks a few times originating from what seems like the panel below the door- but never starts the wash.


  10. I have a model DW80R5060US and I get an OC error code but it all seems to be draining properly. Filters are clean, there’s no clog in the sink drain, no kink in the drain hose, pulls in water no problem…not sure what I should be looking for next.

  11. Hi there,

    I have the 5c error on my Samsung DW80K5050UG. It isn’t filling. I suspect there is a blockage. Is there a filter on the water inlet or a place to verify water supply?


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