When a Samsung dishwasher drain pump does not function as it is supposed to, this will cause the appliance to become unusable.
You will need to figure out what’s going on and how to fix the drain pump in a dishwasher to ensure it works properly.
This is why you will want to start by figuring out why the Samsung dishwasher drain pump won’t stop.
A Samsung dishwasher drain pump won’t stop when the leak sensor is malfunctioning. This sensor is responsible for detecting moisture and draining once a specific limit is reached. To fix the issue, check the error codes, look at the float switch, and inspect for leaks.
In most cases, the issue is going to be a leak that is causing the moisture level to increase when it shouldn’t.
This is when the Samsung dishwasher will react as it is supposed to and begin the draining phase before it should.
This guide will look at what happens when a Samsung dishwasher drain pump won’t stop and how to fix it.
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Steps To Follow If Samsung Dishwasher Drain Pump Won’t Stop
1. Check For Error Codes
When running a Samsung dishwasher drain pump test, you might notice it is not stopping. This is something that can happen over time and it’s best to go through a troubleshooting process to get to the bottom of things.
The first step is to look for error codes.
New Samsung dishwashers have error codes indicating what’s going on.
Go through and check if there’s an error code showing up. If there is then you will want to go through the user manual and see what can be done for that specific error code.
In some cases, all you have to do is unplug the dishwasher, let it sit for 10-15 minutes, and then plug it back in.
This will reset the appliance and likely fix the error code.
This does not always work but it’s an easy step to go through before looking at a more comprehensive issue.

2. Inspect The Float Switch
If the Samsung dishwasher keeps draining when empty, you are likely going to hear a hammering sound.
This is a sound that is a common sign there is something wrong with one of the internal components causing the drain pump to activate.
You will want t start with the internal float switch.
The float switch is designed to hit a specific level before the dishwasher empties. This is to ensure it does not fill too high.
It is a part of the leak sensor that could be malfunctioning.
You will want to take a look at the leak sensor and float switch to see if these parts are damaged. If they are then you will need to replace the float switch.
3. Check And Fix Leaking
You will also want to see whether or not the leak sensor is right.
Don’t immediately assume the leak sensor is firing out of place.
It might be warning you there is something wrong with the Samsung dishwasher and that is why the drain pump is active.
For example, is the seal loose causing water to leak from the bottom or the side? This will lead to water damage and you will want to act fast.
Always check and fix leaking when you get the chance to do so.

4. Run A Quick Test Cycle
When you have checked everything and it’s good to go, you will always want to run a quick test cycle.
Just do a quick rinse with a few dishes.
This is going to let you see whether or not the leak sensor is working as it is supposed to. If it is, you are not going to hear a hammering noise and it is going to go through the wash cycle as intended.
This is a good sign and then you can increase the load as desired.
Final Thoughts
These steps will help when a Samsung dishwasher drain pump won’t stop.
If the Samsung dishwasher drain pump won’t stop, the likely cause is a faulty leak sensor or float switch. To fix the issue, check for error codes, reset the Samsung dishwasher, inspect for leaking, and replace the float switch if it’s damaged.
It is one of these issues that will be causing you trouble.
In some cases, the leak sensor is working as it is supposed to and there is a leak you’re missing.
It’s always best to go through and look at everything when you are dealing with a problem such as this one. Otherwise, you might have to face water damage that ruins other parts of the room.
Read More On Kitchens:
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- How To Manage A Dishwasher’s Normal And Quick Wash