How to Keep Your Samsung Dishwasher Clean and Running Well

Your Samsung dishwasher needs regular cleaning to work properly

A Samsung dishwasher collects food particles, mineral deposits, and grease inside its spray arms, filter, and door seals—even when it's doing its job. Over time, buildup reduces water pressure, leaves spots on dishes, and can create odors. Cleaning the interior and exterior takes about 30 minutes every month and prevents most common problems before they start.

The good news is that Samsung dishwashers are designed so you can reach the parts that need cleaning without tools. Your manual will show you exactly where the filter sits and how to remove the spray arms, but the process is the same across most Samsung models: pull, twist, or slide to release, rinse under running water, and replace.

Key Takeaways

• Clean the filter basket at the bottom of your Samsung dishwasher every month by twisting it counterclockwise and rinsing debris under running water.
• Remove and rinse the upper and lower spray arms monthly to clear the small holes that distribute water across your dishes.
• Wipe the door gasket and edges with a damp cloth to prevent mold and odors from building up in the rubber seal.
• Run a cleaning cycle with a commercial dishwasher cleaner or white vinegar every two to three months to dissolve mineral deposits inside the tub.
• Check the drain area at the bottom front of the tub for trapped food or debris that blocks water from draining completely.

Removing and cleaning the filter

The filter basket sits at the bottom center of your Samsung dishwasher tub. It catches food particles so they don't clog the drain. To access it, open the door, look down at the bottom, and locate the cylindrical or basket-shaped filter—it will be obvious once you know to look for it.

Twist the filter counterclockwise (or pull straight up, depending on your model) until it releases. Rinse it under warm running water and use an old toothbrush to scrub away stuck-on food or grease. If debris is packed inside the filter cage itself, soak it in warm water for five minutes, then brush again. Replace the filter by twisting it clockwise until snug, or pushing it down until it seats fully. Do not force it—it should fit smoothly.

While the filter is out, look into the cavity where it sits. You may see a small drain hole at the very bottom. If water or food is pooled there, use a small cup or turkey baster to remove it, then wipe the area dry with a cloth.

Cleaning the spray arms

The upper and lower spray arms rotate during the wash cycle to spray water across your dishes. The holes in these arms are small and can become blocked by mineral deposits or food particles. When that happens, water doesn't reach all your dishes evenly, and you end up with spots or dirty patches.

To remove the lower spray arm, locate it at the bottom center of the tub (usually just above or around the filter area). Most Samsung models use a simple push-and-twist or pull-straight-up design. Check your manual for the exact motion, but it should take no more than a few seconds. Once it's free, hold it under warm running water and use a toothpick or small brush to clear each hole. You should see water flow through when you're done.

The upper spray arm is usually accessed by removing the upper rack. Pull the rack out fully, then look up at the center of the tub. The upper arm may twist off or pull down—again, your manual will show the exact method. Clean it the same way: rinse and clear each hole. Replace both arms by reversing the removal steps, making sure they spin freely by hand before you close the door.

Wiping the door gasket and seals

The rubber gasket that runs around the door edge traps moisture and food particles. Over weeks, this creates a dark, slimy film and causes odors. The gasket is easy to clean and takes only a minute.

Open the door fully and look at the rubber seal running along the top, sides, and bottom. Use a damp cloth (warm water is fine) and wipe the entire gasket, paying special attention to the folds and crevices where mold hides. If you see black spots or heavy buildup, dampen the cloth with a 50/50 mix of white vinegar and water, then wipe again. Dry the gasket with a clean cloth when you're done.

Also wipe the door frame itself—the metal or plastic surface where the gasket sits. Food and mineral deposits collect there too, and wiping it keeps the seal working properly and prevents leaks.

Running a cleaning cycle with vinegar or commercial cleaner

Even with monthly filter and spray arm cleaning, mineral deposits build up inside the tub walls and heating element. These deposits reduce efficiency and can leave a white or cloudy film on dishes. A cleaning cycle every two to three months dissolves these deposits and keeps the interior fresh.

You have two options: white vinegar (inexpensive and effective) or a commercial dishwasher cleaner like Finish or Affresh (stronger on heavy buildup). For vinegar, place a bowl filled with one cup of white vinegar on the upper rack, close the door, and run a normal or heavy wash cycle on an empty dishwasher. For commercial cleaners, follow the package instructions—most go in the detergent dispenser or sit in a bowl on the bottom rack.

Do not mix vinegar and commercial cleaner in the same cycle. Choose one or the other. If your water is very hard (lots of mineral deposits), use the commercial cleaner; if your water is soft or moderately hard, vinegar works well and costs less.

Checking and clearing the drain area

At the very bottom front of your Samsung dishwasher tub, just above the filter, there is usually a small drain opening or sump area. Food and debris can collect here and block water from draining completely, leaving standing water at the end of a cycle.

After you remove the filter, look into this area. If you see water pooled or debris sitting there, use a small cup, turkey baster, or cloth to remove it. Wipe the area dry. If water keeps pooling after you've cleaned the filter and spray arms, the drain hose may be kinked or clogged—check behind and under the dishwasher to make sure the hose isn't bent sharply, and consider calling a service technician if the problem continues.

Cleaning the exterior and control panel

The outside of your Samsung dishwasher also needs care. Stainless steel fronts show fingerprints and water spots, and the control panel collects dust and spills.

For stainless steel, use a soft cloth slightly dampened with water. Wipe in the direction of the grain (you'll see a subtle pattern on the metal). For stubborn spots or fingerprints, use a commercial stainless steel cleaner or a cloth dampened with a tiny amount of white vinegar. Dry immediately with a clean cloth to prevent streaks. Never use abrasive scrubbers or bleach on stainless steel—they scratch and dull the finish.

For the control panel, use a dry or barely damp cloth. If buttons or the display are sticky, dampen the cloth slightly with water and wipe gently. Do not spray liquid directly onto the panel, as it can seep into the electronics.

Frequently Asked Questions

How often should I clean my Samsung dishwasher?

Clean the filter and spray arms every month. Wipe the door gasket every two weeks. Run a full cleaning cycle with vinegar or commercial cleaner every two to three months. If you use your dishwasher daily or have hard water, do the cleaning cycle monthly instead.

What should I do if my dishwasher smells bad?

Odors usually come from the door gasket or trapped food in the filter and drain area. Remove and rinse the filter, wipe the gasket with a vinegar-dampened cloth, and check the drain sump for standing water. Then run a cleaning cycle with white vinegar. If the smell returns within a week, the drain hose may need professional inspection.

Can I use bleach to clean my Samsung dishwasher?

No. Bleach can damage the interior finish and rubber seals. Use white vinegar or a commercial dishwasher cleaner instead. Both are safe for all Samsung dishwasher materials.

Why are there white spots on my dishes after washing?

White spots are usually mineral deposits from hard water. Clean the spray arms to make sure water is flowing evenly, then run a cleaning cycle with a commercial dishwasher cleaner. If spots continue, your water hardness setting may need adjustment—check your manual for how to access this setting on your specific model.

Is it normal for water to pool at the bottom after a cycle?

A small amount of water (less than a quarter inch) is normal and drains during the next cycle. If more than that sits there, the filter may not be seated properly, the drain sump may be clogged, or the drain hose may be kinked. Remove and reseat the filter first, then check the sump area for debris.