Debris

This may give you a solution.

To keep your washer tub clean, use the SELF CLEAN cycle at least once a month or every 20 cycles.

Perform the recommended procedures below when using the SELF CLEAN cycle. On 2011-2013 models, the SELF CLEAN cycle is labeled "Pure Cycle."

1. Remove all items from the washer tub and ensure the tub is empty. Laundry left in the tub during the SELF CLEAN cycle may be damaged.
2. Press Power to turn on the washer.
3. Turn the Cycle Selector to SELF CLEAN (or select Pure Cycle).
4. Press and hold Start/Pause (Hold to Start).
5. After the SELF CLEAN cycle, leave the lid open to dry.

Note:

• The water temperature for SELF CLEAN is set to Hot and cannot be changed.
• When the noticeable residue is present in the washer tub, add 1 cup (8 fl.oz or 240ml) of liquid chlorine bleach to the bleach compartment before you start the SELF CLEAN cycle.
• Do not use or mix any other detergent or chemicals during the SELF CLEAN cycle. If necessary, run a RINSE+SPIN cycle after the SELF CLEAN cycle has completed to help remove any residual residue.
• Please be aware that certain usage and environmental conditions may result in residue build-up or odor in the washer tub.

Caution:

• Check the washer tub before using the SELF CLEAN cycle. Remove any water remaining in the tub by running the SPIN ONLY cycle before starting the SELF CLEAN cycle.
• If there is chlorine bleach left in the washer tub for an extended period of time, rust can occur.

Fabric softener buildup. Fabric softener can build up over time on the inside of the washing machine drum, and this buildup can attract dirt and debris. This can then transfer to your clothes during the washing cycle.

Detergent buildup. Detergent can also build up over time on the inside of the washing machine drum, and this buildup can attract dirt and debris. This can then transfer to your clothes during the washing cycle.

Hard water mineral deposits. If you have hard water, minerals can build up inside the washing machine drum. This buildup can attract dirt and debris, and it can also cause the water heater to work less efficiently.

A problem with the washing machine's drainage system. If the washing machine's drainage system is not working properly, dirt and debris can build up inside the drum. This buildup can then transfer to your clothes during the washing cycle.

Here are some things you can do to try to fix the problem:

Clean the inside of the washing machine drum. You can use a washing machine cleaner or a mixture of vinegar and water to clean the inside of the drum.

Use the correct amount of detergent. Consult the detergent manufacturer's instructions to determine how much detergent to use.

Use a fabric softener that is compatible with high-efficiency washing machines.

Soften hard water. You can use a water softener or a water conditioner to soften hard water.

Check the washing machine's drainage system. If the drainage system is not working properly, you may need to call a repair technician to fix it.

If you have tried all of the above and you are still getting little pieces of dark brown debris on your clothes, you may need to contact Samsung customer service for assistance.