Top 5 Reasons Samsung Dishwasher Not Draining

Are you at the point in which you are tired of seeing the puddle of water at the bottom of your Samsung Dishwasher every time you open it? Well, we put together this article to help get to the root cause and efficient ways to fix the issue.

There can be many reasons for your Samsung dishwasher not draining. But the primary reason is that the drainage system isn’t functioning correctly. This is usually caused by a clogged sink drain or a pinched or twisted drain hose.

We discuss the solution to the above issues as well as others that could be causing the drainage issue. However before we do that, it is important to understand the error codes related to the issue.

Error Codes Associated with the Samsung Drainage Problem

Samsung drainage problem error code

When the Samsung dishwasher cannot drain, the following codes will flash on the digital display:

5C, SC, 5E, SE – Drain Error

When this error shows up, it means that the dishwasher cannot drain.

OC, 0C, or – Over-level Water Error

This error is also closely related to the drainage issues in the dishwasher. It means that there is more water in the dishwasher than is generally required.

If you do not have a digital display, any underlying problems with the dishwasher are indicated through different combinations of blinking lights. The Auto and Heavy lights flashing on the panel refer to a drain issue, and so does a Delicate flashinglight.

If these indicators are present, you are likely faced with a clogged sink drain or possible failed parts.


Reason 1: Clogged Sink Drain

First, check for any blockages on the sink drain. Inspect the drain connection at the sink.

For Dishwashers Connected to the Garbage Disposal

If you use a garbage disposal, make sure that food particles and debris are not clogging it. For a newly installed garbage disposal, ensure the cap is off, and it allows free flow of water.

For Dishwashers Directly Connected to the Drain

Your dishwasher could also be directly connected to the drain. If that is the case, then look down the drain to ensure no food particles are blocking it. Remove any restrictions you may find in the drain.

Also, verify the sink that the Samsung dishwasher is connected to drains properly. To check, turn the connected sink’s tap on for 30 seconds. If the water doesn’t pass, you have a home plumbing issue, not a problem with the dishwasher drain. Call a plumber to fix the clogged sink drain.

Reason 2: Twisted Drain Hose

One of the most common causes for a Samsung dishwasher not draining is a drain hose that is pinched closed. This could occur right after installation if the dishwasher were sitting on top of the drain hose. In such a case, the dishwasher won’t drain.

Other common causes related to improper drain hose installation resulting in a drainage issue include:

a drain hose that is not connected to an air gap

a drain hose does not have a high loop

In any of the scenarios mentioned above, water will not drain correctly from the Samsung dishwasher due to backflow.

Local regulations for drain hose installations can vary; make sure you follow them accordingly. If the drain hose has been twisted to the point that it is damaged, it will need to be replaced.

Reason 3: Failed Drain Pump

With the help of an impeller, the drain pump pushes water through the drain hose into the garbage disposal or the sink drain.

A failed pump motor will not allow the water to drain from the Samsung dishwasher drain pump. Use a multimeter to test the drain pump motor for continuity. If it fails the test, replacement is necessary.

How to Unclog a Drain Pump

Apart from a failed pump motor, a drain pump clogged with dirt and debris could also be the reason for your Samsung dishwasher not draining.

Remove your dishwasher’s lower rack to locate the “Cleaning the filter” section. Take out the cylindrical microfilter and use a sponge to get rid of any moisture on the same. Push the handle to remove the drain pump cover; first, move the handle in the direction of the arrow and then push out.

Inspect if the impeller needs replacement. If not, then clean the drain pump. Once done, put the drain pump cover back in place and push till you hear a click.

Reason 4: Failed Drain Solenoid

Specific Samsung dishwasher models are equipped with a drain solenoid valve. In such models, the drain valve opens and allows the water to drain. If the solenoid fails, the drain valve will remain closed and result in standing water.

For the solenoid as well, you can use a multimeter to determine if it has continuity. If the test doesn’t exhibit continuity, replace the part.

solenoid failure testing

Reason 5: Clogged Water Inlet Assembly

A clogged water inlet assembly can also cause drainage problems in your Samsung dishwasher.

The water inlet assembly is connected between the drain pump and the drain hose. Any water pumped out of the drain pump has to go through the water inlet assembly before finally draining out of the drain hose.

Sometimes the water inlet assembly can get clogged, which does not allow the dishwasher to drain correctly.

Check the assembly located on the left side of the Samsung dishwasher. When you pull the dishwasher out, you will find two gray hoses after lifting the side cover. Disconnect the assembly from the hoses and clean thoroughly.

While cleaning, make sure to place towels under the hoses. This will prevent water spillage into the drain pan, which can trigger the flood sensor.

Other Likely Reasons your Samsung Dishwasher is not Draining

Apart from the five causes mentioned above, there can be other reasons your Samsung dishwasher is not draining.

Damaged Check Valve

The job of a check valve is to stop already pumped water from returning to the dishwasher. A damaged check valve (or one that has been stuck in a closed position) will not do its job correctly or at all.

First, try to clean the valve to rectify the problem. If the water still returns to the dishwasher after being pumped out, you need to replace it.

Dirty Drain, Filter, and Sump

Sometimes all you need for your Samsung dishwasher to drain properly is a thorough cleaning of the drain, filter, and sump.

For a removable filter, give it a thorough wash under running water and remove any leftover particles with the help of a soft brush.

While the filter is still removed, access the drain by lifting the drain pump cover and clean it well. Push the cover back in once you are done.

Locate the sump at the bottom of the drain and remove any debris. You can use a clothes hanger for this (straighten it out first).

If you cannot remove the earlier mentioned parts, general cleaning of the entire area should eliminate any blockages and odor problems.

What to do if Drain Error Displays but there is no Draining Issue?

In some cases, even when the dishwasher drain is working fine, drain issue-related error codes such as 5C, SC, 5E, SE might be displayed. If this happens, your dishwasher can stop mid-cycle. Samsung dishwashers can display such errors without an active draining issue if you have a faulty drain sensor or a defective ECS sensor.

If the sensor has become dirty over time, you should clean it. If cleaning the sensor does not resolve the issue, then replacement might be necessary.

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Frequently Asked Questions

Is there a fuse on a Samsung dishwasher?

Samsung dishwashers are equipped with a thermal fuse. Primarily, the fuse cuts the power to the dishwasher in case of overheating.

If the fuse is blown, it will not allow the dishwasher to turn on. Check if the fuse has continuity using a multimeter and replace it if it fails the test.

How do you run a Samsung dishwasher cycle?

To run a cycle, open the dishwasher door and load the dishes, making sure they have been scraped clean but not pre-rinsed. Add detergent and rinse aid to the assigned compartments. Now, press the POWER button. Select a cycle followed by options. Now, press START. You will have only three seconds to close the door.

Before the cycle starts, the dishwasher will drain for a few seconds. Please note that in some models, you have to close the door first. Once the door is closed, you can select a cycle and then start it afterward.

How do you change a cycle in a Samsung dishwasher?

If you need to change or cancel a cycle in the Samsung dishwasher, press the START button and keep on holding it for 3 seconds.

Suppose you have opened the dishwasher door and need to resume the cycle afterward; press START. After pressing START, close the door.


Your Samsung dishwasher might not be draining for several reasons. To find a fix for the issue, you need to understand the cause of the drainage problems. Troubleshooting the problems as mentioned above should resume proper drainage.

If your dishwasher is still clogged or there is still water standing in your appliance, you can call a professional maintenance specialist or request the Samsung repair service.

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