SE is a water inlet valve error on Samsung washers
The SE error code on a Samsung washer means the machine cannot detect water flowing into the drum during the fill cycle. This happens when the inlet valve — the part that opens to let water in — is either stuck closed, clogged, or not receiving the signal to open. The washer stops mid-cycle and displays the code to prevent damage from running without water.
This is one of the most common Samsung washer errors, and the fix depends on what is actually blocking the water. Sometimes it is as straightforward as a kinked hose or a closed shutoff valve. Other times the inlet valve itself has failed and needs replacement.
Key Takeaways
- SE means the washer's inlet valve is not opening or water is not reaching the drum, and the machine will not complete the cycle.
- Check the water shutoff valves behind the washer first — they must be turned fully open for water to flow.
- Inspect both inlet hoses for kinks, cracks, or blockages, and straighten or replace them if damaged.
- If hoses and shutoff valves are fine, the inlet valve itself may be stuck or failed, which usually requires professional repair or replacement.
Check the water shutoff valves first
Behind your Samsung washer, you will find two shutoff valves — one for hot water and one for cold water. These are small knobs or levers on the wall where the hoses connect. If either valve is partially closed, water cannot reach the washer, and you will see the SE code.
Turn both valves all the way counterclockwise (or pull the lever all the way out, depending on the type) until they stop. Do not force them. If a valve is stuck or will not turn, it may have mineral buildup inside and may need replacement, but start by making sure both are fully open.
After opening the valves, run a test cycle to see if the error clears. If it does, the problem was the shutoff valve position. If the SE code returns, move to the next step.
Inspect the inlet hoses for damage or blockage
The two inlet hoses carry water from the wall valves to the back of the washer. A kinked, cracked, or pinched hose will block water flow and trigger SE. Pull the washer away from the wall slightly and look at both hoses along their entire length.
If you see a kink or bend, straighten it gently. If the hose is cracked or has a hole, it needs to be replaced — you can buy a replacement inlet hose kit at most hardware stores or online for $15 to $40. Disconnect the old hose by turning the fitting counterclockwise by hand, then screw the new one on hand-tight.
Mineral deposits can also clog the inlet hose screens — small mesh filters at the connection points. Turn off the shutoff valves, disconnect the hoses, and look inside the fitting where it attaches to the washer. If you see white or brown buildup, soak the screens in white vinegar for 30 minutes, then rinse and reattach.
What to do if the inlet valve is the problem
If the shutoff valves are open, the hoses are clear and undamaged, and water is reaching the back of the washer, the inlet valve itself is likely stuck or has failed electrically. The inlet valve is a solenoid-controlled part that opens when the washer's control board sends a signal. If it does not open, no water enters the drum.
Testing and replacing the inlet valve requires removing the washer's top or front panel and disconnecting the valve from the water lines and electrical connector. This is a job most people should have a technician handle, because the washer must be unplugged and drained first, and the valve costs $100 to $250 plus labor.
If your washer is still under warranty, contact Samsung support or your retailer to arrange a repair visit. If it is out of warranty, get a quote from an appliance repair shop before deciding whether to repair or replace the machine.
How to prevent SE errors in the future
Once you have fixed the SE error, a few habits will help prevent it from happening again. Check the shutoff valves once a year to make sure they are fully open — they can drift closed over time. If you live in an area with hard water, the inlet hose screens can clog faster, so inspect them every six months.
When you are not using the washer for an extended period, turn off the shutoff valves to prevent pressure buildup in the hoses. This also protects against leaks if a hose develops a crack while the machine is idle.
Other Samsung washer error codes that look similar
Samsung washers display several error codes that involve water flow. IE means the washer detected water coming in too slowly — similar cause to SE, but the valve is opening partially rather than not at all. OE means water is not draining, which is a different problem entirely (clogged drain hose or pump). UE means the load is unbalanced, which has nothing to do with water inlet.
If you see SE specifically, the problem is always on the inlet side — water getting in, not getting out or staying balanced. The steps above will isolate whether it is a valve, hose, or shutoff issue.
Frequently Asked Questions
Can I run my washer with the SE code showing?
No. The washer will not complete a cycle if SE is displayed. It will stop during the fill phase to prevent running without water, which can damage the drum and motor. Fix the error before attempting another wash.
Does SE mean I need a new washer?
Not necessarily. Most SE errors are caused by shutoff valves being closed or hoses being kinked — both cheap and straightforward fixes. Only if the inlet valve itself has failed will you need a repair technician, and even then the washer is usually still worth fixing if it is less than 5 to 7 years old.
What if I open the shutoff valves and the SE code is still there?
Move to the hose inspection step. Check for kinks, cracks, or blockages. If the hoses look fine and water is flowing into the washer, the inlet valve is likely the problem and you will need a technician to diagnose and replace it.
Can I replace the inlet valve myself?
It is possible if you are comfortable working with appliances, but it requires removing panels, disconnecting water lines, and working with electrical connectors. Most people should hire a technician to avoid water damage or electrical hazard. The labor cost is usually $100 to $200 on top of the valve itself.
Why does the SE code come back after I fix it?
If SE returns after you have cleared it, the underlying cause was not fully resolved. If you straightened a kinked hose, it may have kinked again — try routing it differently. If you cleaned the inlet screens, mineral buildup may have returned — consider installing a water softener if you have hard water.