Quick answer: On a Samsung Washer, the 4E error code (also displayed as 4C or nF on some models) means the washer is not receiving enough water or could not fill within the expected time. Samsung Washer 4E is most often caused by closed or partially closed water supply valves, kinked inlet hoses, clogged inlet mesh filters, or low water pressure. Open the supply valves fully, check the inlet hoses for kinks, and clean the mesh filters at the back of the machine to resolve most Samsung Washer 4E errors.
Samsung Washer 4E is a water supply error. When the machine starts a wash cycle, the control board expects to fill the drum to a certain water level within a set time window. If the Samsung Washer cannot complete the fill — because water pressure is too low, flow is restricted, or no water is entering at all — it stops and displays the 4E error code.
The 4E code can appear at the very start of a cycle when filling begins, or partway through if refilling is needed during a rinse. Samsung Washer 4E is typically a straightforward supply-side problem and does not indicate an internal machine failure in most cases.
The tap or valve behind the Samsung Washer may have been turned off for maintenance and not fully reopened. Even a valve that is three-quarters open can restrict flow enough to cause 4E, especially during a fill cycle that requires a high volume of water quickly.
The water inlet hoses connecting the Samsung Washer to the supply valves can kink if the machine has been pushed against the wall. A kinked hose severely restricts water flow and is a very common cause of the 4E error code.
At the connection point between the inlet hose and the Samsung Washer, small mesh screens filter debris from the water supply. Over time, sediment, mineral deposits, and particles from the supply line collect on these screens and restrict water flow. Clogged filters are one of the most common causes of Samsung Washer 4E in homes with older plumbing.
Samsung Washer models typically require a minimum water pressure of 0.5 bar (about 7 psi) to fill correctly. If household water pressure drops temporarily due to high demand, or if the property has consistently low pressure, the Samsung Washer may not fill fast enough and will display 4E.
The internal water inlet valve on the Samsung Washer opens electrically to allow water in. If the valve solenoid has failed, or if mineral buildup has jammed the valve closed, the machine cannot fill regardless of supply pressure. A failed inlet valve must be replaced to resolve 4E.
In cold weather, water supply lines or inlet hoses that run through unheated spaces can freeze and block water flow entirely, triggering Samsung Washer 4E. This is a seasonal issue in colder climates.
Follow the steps below one at a time — many error codes can be fixed faster than they look.
Locate the hot and cold water valves behind the Samsung Washer. Turn both fully counterclockwise (open). If your machine requires only cold water, confirm that valve is fully open. Try running a cycle to see if the 4E error clears immediately.
Carefully pull the Samsung Washer away from the wall and inspect both inlet hoses from valve to machine. Straighten any kinks by bending them in the opposite direction and securing with a hose clip if needed. Push the machine back gently to prevent re-kinking.
This is the most effective fix for most Samsung Washer 4E cases:
If cleaning the filters does not resolve Samsung Washer 4E, test household water pressure. You can use an inexpensive pressure gauge attached to an outdoor tap. Minimum required pressure for most Samsung Washer models is 0.5–1.0 bar. If pressure is too low, contact your water utility or consider a pressure booster pump.
If supply pressure and hoses are fine but Samsung Washer 4E persists, disconnect the machine and access the water inlet valve (usually located at the back where hoses connect internally). Test the solenoid coils with a multimeter — each coil should show between 500–1500 ohms. No continuity means the valve needs replacement.
If the inlet valve tests fine electrically but the Samsung Washer still shows 4E, the problem may be in the wiring between the valve and the control board, or the board itself is not sending the open signal. Have a qualified technician diagnose and repair this level of fault.
Yes. Samsung Washer 4E and 4C refer to the same water supply error. The code displayed depends on the model generation. All fixes described above apply equally to both codes.
If 4E appears mainly in the morning or evening when household water use is high, low supply pressure during peak demand is likely the cause. Try running the Samsung Washer during off-peak hours to confirm this.
Clean the inlet mesh filters every 6–12 months, make sure supply valves are always fully open, and avoid pushing the Samsung Washer against the wall in a way that kinks the inlet hoses. These steps prevent most 4E occurrences.
Samsung Washer 4E means the machine cannot fill with water. The most common fixes are opening the supply valves fully, straightening inlet hoses, and cleaning the mesh filters at the inlet ports. If those steps do not clear Samsung Washer 4E, check household water pressure and test the internal inlet valve. Most 4E errors are resolved without professional help once the supply side of the machine has been checked and cleared.
Related Samsung Washer water supply errors: Samsung Washer Error 4C and Samsung Washer Error nF describe the same fault on different model generations.
See all Samsung Washer error codes: Samsung Washer Error Codes – Complete Guide
Try these recommended tools — used by thousands to solve the same issue:
As an Amazon Associate / affiliate partner we may earn from qualifying purchases.
Browse More Fixes