If your Samsung WF50K7500AW/A2 washer is not draining, water may remain inside the drum after the wash cycle. You may also see a drain-related error code, hear the pump humming without water leaving the tub, or notice that the washer will not move into the spin cycle. On front-load washers, the most common causes are a clogged drain pump filter, blocked drain hose, jammed pump impeller, faulty drain pump motor, or excessive suds.
This guide explains how the drain system works, what causes drainage failure, and how to clean, inspect, test, and replace drain-related parts. Before ordering parts, confirm the complete model number WF50K7500AW/A2 and the revision shown on the washer label because pump and filter parts can vary or be substituted by the manufacturer.

How Does the Washer Drain System Work?
During the drain portion of a cycle, the washer control sends power to the drain pump. The pump pulls used water from the bottom of the tub and pushes it through the drain hose into the home standpipe or laundry sink. The pump filter catches lint, coins, hair pins, buttons, and other small debris before they reach the pump impeller.
If the filter is clogged, the washer cannot drain at the correct speed. If debris reaches the impeller, the pump may hum, click, or stop moving water. If the drain hose is kinked, pushed too far into the standpipe, or blocked with buildup, water can remain in the drum even when the pump runs. The washer may pause, show a 5C, SC, 5E, or similar drain code, and prevent spinning until the water level drops.
Common Causes of a Samsung WF50K7500AW/A2 Washer Not Draining
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Clogged drain pump filter or debris filter
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Coins, fabric, hair pins, or lint blocking the pump impeller
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Kinked, crushed, frozen, or clogged drain hose
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Drain hose inserted too far into the standpipe, causing siphoning or poor draining
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Failed drain pump motor or worn impeller
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Blocked tub-to-pump hose or pump check valve
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Too much detergent causing excessive suds and slow draining
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Control board or wiring issue after the pump and hose test correctly
Tools and Materials Needed
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Towels or absorbent cloths
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Shallow pan or small container for water
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Phillips screwdriver
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Flathead screwdriver
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Pliers
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Work gloves
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Soft brush or cloth for cleaning the filter
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Multimeter for testing pump continuity
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Replacement drain pump filter, if damaged
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Replacement drain pump motor, if faulty
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Replacement check valve or hose, if blocked or damaged
Safety Precautions
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Unplug the washer before removing panels, handling wiring, or replacing the pump.
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Turn off the water supply if you need to move the washer or disconnect hoses.
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Expect water to drain from the filter area. Keep towels and a shallow pan ready.
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Do not force the pump filter cap if it is stuck. Drain the emergency hose first and turn the cap slowly.
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Do not run the washer if water is leaking from the pump housing or filter cap.
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Call a technician if the washer is full of water and you cannot safely drain it.
Step-by-Step Instructions: Fix a Samsung WF50K7500AW/A2 Washer Not Draining
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Check for a drain error code. Look at the display for 5C, SC, 5E, SE, nd, or another drain-related code. A drain code means the washer has detected that water is not leaving the tub fast enough. Cancel the cycle and do not restart a full load until the filter and drain hose are checked. If the door is locked because water remains inside, use the emergency drain hose before opening the filter cap.
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Drain the washer manually. Unplug the washer, open the lower front access cover near the pump filter, and place towels and a shallow pan under the emergency drain hose. Remove the small hose cap and let the water drain slowly into the container. Replace the hose cap securely once water stops flowing.
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Clean the drain pump filter. Turn the drain pump filter cap counterclockwise and remove it carefully. Remove lint, coins, hair, buttons, and other debris from the filter. Wash it with warm water and clean it with a soft brush or cloth. Wipe inside the filter housing and check that the pump impeller behind the filter is not blocked. Reinstall the filter by turning it clockwise until secure.
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Inspect the drain hose. Pull the washer forward enough to inspect the rear drain hose. Make sure the hose is not kinked, crushed, or pinched behind the washer. Check that the hose is not inserted too deeply into the standpipe. Remove the hose and flush it if you suspect a clog. Confirm that the standpipe or laundry sink drains freely.
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Run a drain and spin test. Reconnect power after the filter and hose are secure. Select a Drain and Spin or Spin Only cycle if available. Listen for the drain pump at the start of the drain phase. A healthy pump should move water steadily through the drain hose. If the pump hums but water does not move, inspect the impeller and hose again.
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Access the drain pump. Unplug the washer again before accessing internal parts. Remove the lower front panel or access panel as needed for the pump area. Take a photo of the wiring and hose positions before disconnecting anything. Place towels under the pump because trapped water may spill from the hoses. Use pliers to release hose clamps and gently remove hoses from the pump housing.
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Test the drain pump motor. Disconnect the pump wiring harness. Set the multimeter to continuity or resistance and test across the pump terminals. An open reading, burnt smell, broken impeller, or seized motor indicates the pump should be replaced. If the pump tests correctly but does not receive power during drain, inspect the wiring or control board operation.
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Replace the drain pump or filter. Remove the mounting screws securing the old pump or pump assembly. Transfer any reusable brackets or seals if the replacement design requires it. Install the new pump in the same position as the original. Reconnect hoses and clamps securely to prevent leaks. Reconnect the wiring harness until it clicks or seats firmly. Reinstall the access panel and filter cap before testing.
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Test for draining and leaks. Plug the washer back in and run a rinse and spin or drain and spin cycle with a small load or no load. Watch the pump filter area and hose connections for leaks. Confirm that water drains fully and the washer reaches the spin cycle. If the error returns, recheck the hose path, pump wiring, and control signals.
Troubleshooting Tips
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Washer hums but does not drain: The pump impeller may be jammed or the hose may be blocked.
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Washer drains slowly: Clean the filter and inspect the drain hose for lint buildup or partial blockage.
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Washer shows 5C or SC after filter cleaning: Check the pump motor, pump wiring, and drain hose height.
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Water leaks after filter cleaning: Remove and reinstall the filter cap until it seals correctly.
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Washer will not spin: Many front-load washers will not spin until water drains below the required level.
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Repeated suds or slow drain problems: Use only high-efficiency detergent and reduce the detergent amount.
Replacement Part Guide
For the Samsung WF50K7500AW/A2 washer, drain parts should be matched to the complete model number and revision. Common drain-related parts include:
| Problem | Replacement Part | Notes |
|---|---|---|
| Filter clogged or cracked | Drain pump filter DC97-16991B | Traps debris before it reaches the pump. Replace if cracked or unable to seal. |
| Pump motor failed | Drain pump motor DC31-00178D or substitution DC31-00187A | Manufacturer substitutions may vary by source and revision. Verify before ordering. |
| Pump check valve damaged | Drain pump check valve DC62-00299A | Helps control drain flow and prevent backflow issues. |
| Hose blocked or leaking | Drain hose or tub-to-pump hose, model-specific | Inspect for clogs, cracks, loose clamps, or collapsed sections. |
| Wiring problem | Pump wiring harness, model-specific | Check if the pump does not receive power during the drain cycle. |
Do not order only by appearance. Use the full model number WF50K7500AW/A2 and confirm the part number with the supplier before purchasing.
Maintenance Tips
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Clean the pump filter regularly, especially if you wash pet bedding, rugs, or lint-heavy items.
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Check pockets before loading clothes to keep coins and small items out of the pump.
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Use high-efficiency detergent and avoid using too much detergent.
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Keep the drain hose properly positioned and free from kinks.
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Run a maintenance or self-clean cycle as recommended for the washer.
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Address slow draining early before the pump overheats or fails.






