DC stands for "Drum Clean," a Samsung washer cycle designed to sanitize the drum and remove detergent buildup

The DC button on your Samsung washer runs a hot-water cycle that cleans the interior of the drum itself, not your clothes. This cycle uses high heat and water circulation to break down detergent residue, fabric softener buildup, and mold spores that accumulate inside the drum over time. Running DC regularly keeps your washer smelling fresh and prevents that musty odor that develops when moisture and soap film sit in the drum between loads.

You do not put clothes in the washer when you run DC. The cycle typically takes 30 to 60 minutes depending on your specific Samsung model. Some newer Samsung washers prompt you to run DC automatically after a certain number of loads, or they display a notification on the control panel when the drum needs cleaning.

Key Takeaways

  • DC is a cleaning cycle for the washer drum itself, not for washing clothes, and the drum should be empty when you run it.
  • The cycle uses hot water and extended agitation to dissolve detergent buildup, fabric softener residue, and mold that can cause odors.
  • Running DC once a month, or whenever you notice a musty smell, keeps your washer in good working condition.
  • Some Samsung models alert you automatically when the drum needs cleaning, while others require you to start the cycle manually.
  • DC is different from a regular wash cycle and uses more water and heat than a standard load.

When to run the DC cycle

Run DC when you notice a sour or musty smell coming from your washer, or as a preventive measure once a month if you use the machine frequently. High-efficiency (HE) washers like Samsung models use less water per load, which means detergent and fabric softener can accumulate faster than in older top-load machines. If you live in a humid climate or leave wet clothes sitting in the washer after a cycle finishes, you should run DC more often—every two to three weeks.

You will also want to run DC if you have not used your washer for several weeks. Stagnant water and humidity inside the drum create an ideal environment for mold and mildew. Running the cycle before you wash clothes again removes any growth that may have started.

How to start the DC cycle on your Samsung washer

Make sure the drum is completely empty, including any lint or small items caught in the rubber seal. Open the door and look around the rubber gasket (the flexible ring around the opening) for debris—this is a common place where coins, buttons, and fabric bits get stuck.

Press the DC button on the control panel. On some Samsung models, DC is a dedicated button. On others, you may need to scroll through the cycle menu using the arrow buttons to find and select "Drum Clean" or "Tub Clean." Once you select it, press Start. The cycle will begin when ready, and the door will lock. Do not open the door while the cycle is running.

When the cycle finishes, the door will unlock automatically. Open the washer and wipe down the inside of the drum and the rubber gasket with a dry cloth to remove any remaining moisture. Leave the door open for at least an hour to allow air circulation and complete drying.

What happens during the DC cycle

The DC cycle fills the drum with hot water—usually around 140°F (60°C) or higher—and runs the drum through several agitation and spin phases. The combination of heat and water movement breaks down soap scum and detergent residue stuck to the drum walls. The cycle then drains and spins to remove the water, leaving the drum clean and dry.

The entire process typically takes 30 to 60 minutes, depending on your washer model and whether it includes an extra rinse phase. Some Samsung models have a "Super DC" or extended DC option that runs longer and uses more water for heavily soiled drums. Check your user manual to see if your model offers this option.

Difference between DC and other cleaning cycles

Samsung washers may have multiple cleaning options, and it is important to know which one to use. DC (Drum Clean) cleans the drum itself and runs with an empty washer. Self Clean or Tub Clean is the same thing—different Samsung models use different names for the same cycle. Sanitize or Sterilize cycles wash clothes while killing bacteria and allergens, so you put clothes in for these.

If your washer has a Tubclean+ option, this is an extended version of DC that includes an extra rinse and may use a small amount of cleaning agent. Check your manual to see which cycles your specific model offers. Running DC regularly means you will rarely need the extended version.

Preventing buildup between DC cycles

You can reduce how often you need to run DC by taking a few straightforward steps after each wash. Leave the washer door open after every load so moisture can evaporate. Wipe the rubber gasket dry with a cloth, paying special attention to the creases where water and detergent collect. Use the correct amount of detergent for your load size—using too much is the main cause of buildup in modern washers.

If you use fabric softener, consider switching to wool dryer balls or dryer sheets instead. Fabric softener is one of the biggest culprits for drum and gasket buildup. If you prefer liquid softener, use it sparingly and run a rinse cycle after your wash to flush out excess product. These habits will keep your washer fresher between DC cycles and extend the life of the machine.

Frequently Asked Questions

Can I add cleaning products to the DC cycle?

Most Samsung washers do not require cleaning products for the DC cycle—hot water and agitation are enough to remove buildup. If you want to add something, check your manual first. Some models have a dispenser for cleaning agents, but using plain hot water is usually sufficient and safer for the machine.

Why does my washer still smell bad after running DC?

If the smell persists, the gasket may have mold growing inside the creases where water gets trapped. Run DC again, then manually clean the gasket by pulling it back gently and wiping the hidden surfaces with a cloth dampened in white vinegar. Leave the door open to dry completely. If the smell returns quickly, the gasket may need replacement.

How often should I run the DC cycle?

Once a month is a good baseline for most households. If you notice odors sooner, run it more frequently. If you use your washer daily or in a humid climate, run DC every two to three weeks. Some newer Samsung models will notify you when it is time to run the cycle.

Does DC use a lot of water and energy?

Yes, DC uses more water and energy than a regular wash cycle because it runs hot water and extended agitation. Running it once a month is not expensive, but if you are concerned about water use, focus on preventing buildup through proper detergent amounts and leaving the door open between loads.

What if the DC button is not working?

Try accessing the cycle through the menu instead of the dedicated button. Use the arrow buttons to scroll to "Drum Clean" or "Tub Clean" and press Start. If the cycle does not appear in the menu at all, consult your user manual or contact Samsung support—your model may use a different name for the cycle.