If you're able to able to blow compressed air backwards through the emergency drain and into the unit, that might help declog it. If that doesn't work, then it might be clogged with hair/lint. You might be able to put drain cleaner in your washer, but that would probably risk destroying it.
Clean with White Vinegar: Fill a bowl or bucket with white vinegar. Submerge the disconnected end of the drain hose in the vinegar for about 15-30 minutes. Vinegar helps break down mineral deposits and residue. Clean the Hose Interior: Use a pipe brush or a flexible wire brush to clean the interior of the drain hose.
If your dishwasher isn't draining, check the filter or drain area inside the dishwasher first. In addition, information codes may appear on the display. This may happen because of an incorrectly installed drain hose. Make sure to keep the filter and drain area clean from any food or debris.
If the sensor detects moisture, the sensor will try to perpetually drain the dishwasher which prevents it from turning off. You can fix this by selecting a different cycle, looking for error codes, or checking for leaks. In rare cases, you may have to contact the installer.
Occasionally, a dishwasher may have standing water remaining if the cycle has been interrupted before the draining process has been completed. Excessive standing water that fills the bottom of your dishwasher after a complete wash cycle is likely due to a clog in the drain or nearby garbage disposal.
Press and hold the cancel button for at least three seconds—or the amount indicated—to activate the draining mechanism. Once the drainage sound completes, and your dishwasher shuts off, check the inside of the unit for standing water.
One of the most frequent issues with Samsung dishwashers is improper drainage.
You can use one of those inexpensive, snake-like tools or a commercial de-clogger.
Prepare a mixture of hot water and vinegar in a bucket. Soak the clogged end of the drain hose in the mixture for at least 30 minutes. Rinse the drain hose with hot water to flush out any loosened debris.
Drano® Snake Plus Tool + Gel System was designed to unclog a kitchen sink, bathroom sink, shower, bathtub and even a laundry drain.
Normally waiting for the cycle to end is all you need to do to unlock the door, or turn your washer on if it's off. If you get stuck, though, you can drain the water from front load washers using the emergency drain hose; once the water is gone, the door will unlock.
Although 10 years, on average, is about how long you can expect your dishwasher to last, some manufacturers boast a longer life span. The following guideline may help you when it is time to upgrade your appliance: 10 years: Bosch, KitchenAid, Maytag, Thermador, Whirlpool, Samsung.
A mixture of equal parts baking soda and vinegar may unclog dishwasher drains. Pour the solution into the basket at the bottom and let it sit for 15 minutes. Then, pour hot water down the basket and run the rinse cycle.
Try vinegar and baking soda
Mix together about one cup each of baking soda and vinegar and pour the mixture into the standing water at the bottom of the dishwasher. Leave for about 20 minutes. If the water is draining or starting to drain at that time, rinse with hot water and then run the dishwasher's rinse cycle.
Clean the drain hose
If it is properly connected, make sure it is cleared of food or debris. You can clean your drain hose using a drain cleaner solution or you can make your own. Baking soda and vinegar is commonly used as a natural drain cleaner and can be a great solution for weaker clogs.
The drain hose helps keep dirty water out of the dishwasher. If there are any kinks or folds (or if it's clogged with food), it can cause standing water. To fix it, you'll need to turn off the power, locate the hose, and check to see that it's not twisted or clogged.
Reasons why your dishwasher might not be draining
We recommend checking the filter first, because that's quite easy to solve yourself. If the filter isn't blocked, the other potential reasons are: A blockage in the dishwasher's drain hose. Debris in the dishwasher's drain pump.