If water keeps entering a Samsung WF50BG8300 when no cycle is running, the washer's inlet valves are letting water through, and the manual's own rule applies: OC means water may overflow, so close the water valve and call for service. Samsung also tells owners to turn the water taps off after the day's washing to prevent damage from escaping water, which is exactly the habit that limits the damage from this fault.
Differential
Likely causes of “Samsung front-load or top-load washer fills with water while turned off”, and how to tell them apart
- 1
An inlet valve that leaks through when the washer is off
What separates it Water keeps running into the drum or the drain with the washer powered off
How to confirm Close both taps and see whether the water stops; then open one tap at a time to find which valve leaks
- 2
A mesh filter or inlet valve fouled by debris
What separates it The valve does not shut fully after a fill and drips water
How to confirm Turn off the taps and clean the mesh filters as the manual says
- 3
A supply tap left open after the day's washing
What separates it Water sits under constant pressure in the hoses and the valve is the only thing holding it
How to confirm Close both taps when you finish washing, as the manual advises, and check the pressure is within 20 to 116 psi (137 to 800 kPa)
- 4
An OC (overflow) condition
What separates it The display shows OC and water has filled higher than it should
How to confirm Samsung's instruction for OC is to close the water valve and call for service
Before you touch a setting
Record this first — changing settings destroys the evidence
- Whether the display shows OC or another information code and whether the drum is filling or only draining
- Which tap, hot or cold, is feeding it when you open one at a time
- How long the water has been entering and whether it drains away or stays in the drum
Try in this order
0 of 5 completedClose both taps and unplug
ReversibleTurn both taps off first. Water that stops entering the drum confirms the inlet valve or supply is the source.
Find which valve leaks
ReversibleOpen the hot tap only and watch for water entering the drum with the washer off; close it, then repeat with the cold tap.
Clean the mesh filters
ReversibleDisconnect the hoses, pull each mesh filter out with pliers, wash it and dry it out of direct sunlight, then refit it. Debris on the filter seat can stop a valve closing.
Check the water pressure
ReversibleThe washer is rated for 20 to 116 psi (137 to 800 kPa). Stay inside that range when you check the supply.
Call service if it persists
ReversibleA valve that passes water when the washer is off needs replacing by a technician. Leave the taps closed until the visit.
Model-specific
What is true of this model and not of its siblings
- Water connections
- Two hoses at the back, each with a mesh filter in its inlet valve; rubber washers in each coupling; never reuse old hoses.
- Code
- OC = water may overflow; close the water valve and call for service.
- Tools and supplies
- Towels, a bucket, pliers for the mesh filters and a cloth to cover the hose ends.
- Parts for this problem on the WF50A8600 (RepairClinic, 2026-09-20)
- cold water inlet valve, part number DC62-30312J, at $128.99.
- Other models this page answers
- These steps also fit models WF53BB8700, WF50A8600, WF42H5000, WF45K6500, WA55A7300, WA54R7200, WA52A5500, WA50R5200, WA50T5300, WA45T3200, WA40A3005, WF45B6300, WF45R6100, WF45T6000.
Stop boundary
When this stops being a self-service repair
- !Close both water taps and unplug the washer; call Samsung service for an OC or a valve that will not shut
- !If water reaches the drum's door line or the floor, stop the supply and drain the drum through the emergency drain tube
Evidence ledger
Sources behind this answer
Exact questions
Common questions
Why does water fill my Samsung WF50BG8300 when it is off?+
The inlet valve is probably passing water. Close both taps and call for service.
Should I turn the taps off after washing?+
Yes. The manual says to turn the taps off after the day's washing to shut off the supply and prevent damage from escaping water.
What water pressure does the washer specify?+
20 to 116 psi (137 to 800 kPa).
Where are the inlet valves?+
At the back of the washer where the two supply hoses connect, with a mesh filter in each.
Can I clean the valve?+
You can clean the mesh filters. The valve itself is a service item.
Is the valve covered by warranty?+
The U.S. warranty covers parts and labor for 1 year.
Should I keep the washer plugged in?+
Unplug it while you troubleshoot. Samsung's service instructions warn that the inlet valve and other internal parts are not grounded during servicing.
Is water in the drum with the washer off always a fault?+
A little water after a cycle may remain; water that keeps rising or a display showing OC is a fault. Close both taps and call service.
Which parts are near the inlet valve?+
The manual's service warning lists the control board, heat sink, motor, inlet valve and pump as parts that are not grounded and can shock during servicing.
What should I do with the taps when I leave home?+
Close both after the day's washing, as the manual advises, so the supply is shut off.
What does a water valve fault sound like?+
A stuck-open valve often hums or hisses faintly at the back panel; treat any water entering an idle washer as a valve or supply fault and call service.
Can I use the emergency drain?+
Yes. Unplug the washer, open the filter cover and drain the drum through the emergency drain tube into a large container.
How do I test which tap is at fault?+
With the washer off and unplugged, open only the hot tap and watch for water in the drum, then close it and try the cold tap.
Can I clean the mesh filters while this is happening?+
Yes, once both taps are closed: pull each filter out with pliers, clean it in water, dry it out of direct sunlight and refit it.
What does the manual say about overflow?+
The information code OC means water may overflow, and the instruction is to close the water valve and call for service.
Should I unplug the washer during the check?+
Yes. The service warnings list the inlet valve among internal parts that are intentionally not grounded and may shock during servicing.