The 4E (or 4C) error code on a Samsung front-load or top-load washer means the machine failed to detect enough water during a fill cycle. It appears within the first 2 minutes of a wash. The three causes in order of likelihood: a kinked water supply hose, clogged inlet valve screens, or a failed water inlet valve ($120–$180 to repair in Denver). If your Samsung washer is showing this code, here is exactly what to check before calling a technician.
What the 4E / 4C Code Means
The 4E and 4C codes are identical — Samsung uses both designations across different model series. The control board monitors water intake during the fill phase; if the drum doesn’t reach the required water level within a set time, the cycle stops and the error code displays on the panel.
This is a water supply problem, not a drum or motor problem. The machine itself is fine — it simply cannot get enough water to proceed safely. Do not attempt to run a cycle repeatedly hoping the code clears on its own; diagnose the source first so you don’t risk running the machine dry.
3 Causes — Check These Before Calling
1. Kinked or Closed Water Supply Hose (Check This First — Free)
The most common cause of the 4E error is also the most straightforward: the hot or cold water supply valve behind the machine was accidentally turned off, or the hose kinked when you moved the machine. Before calling anyone, take 5 minutes to do the following. Check that both supply valves behind the washer are fully open — they should be turned counterclockwise until they stop. Then pull the machine out 6 inches and look at both hoses. A sharp bend or kink will restrict water flow enough to trigger the 4E code even if the valve is open.
If you recently moved the washer for any reason — cleaning, painting, repositioning — a kinked hose is the first thing to rule out. This fix costs nothing and takes less than 10 minutes.
2. Clogged Inlet Valve Screens (DIY — 10 Minutes)
The water inlet valve has small mesh screens where the supply hoses connect at the back of the machine. These screens prevent debris and sediment from entering the valve. In Denver, where the municipal water supply is moderately hard, mineral deposits build up on these screens over 2–3 years and gradually reduce water flow.
To clean the screens: turn off both supply valves, unscrew the hoses from the back of the washer, and use needle-nose pliers to pull out the small mesh screens from each port. Rinse them under running water and use a soft brush to remove mineral scale. Reinsert the screens, reattach the hoses, and turn the water back on. If water pressure seemed lower than usual before the error appeared, clogged screens are very likely your issue.
3. Failed Water Inlet Valve (Requires a Technician)
If both hoses are clear and screens are clean but the 4E code persists, the water inlet valve solenoid has failed. The valve is an electromechanical component — a solenoid coil receives a signal from the control board and physically opens the valve to let water in. When the coil burns out, the valve stays closed regardless of water pressure. There is no user-serviceable fix for this; the valve must be replaced.
Cost in Denver: $120–$180 total including parts and labor. I carry Samsung OEM inlet valves for the most common models on the truck, which means same-day repair is typically possible. You can book washing machine repair online or call directly.
What the Repair Costs in Denver
| Service | Cost |
|---|---|
| Samsung 4E diagnostic / inlet screen cleaning | $75 (waived if I do the repair) |
| Water inlet valve replacement (parts + labor) | $120–$180 |
Which Samsung Washer Models Show the 4E Error
The 4E / 4C code appears on most Samsung front-load and top-load washers from 2015 onward. Common models include: WF45R6100AW, WF50R8500AV, WF45T6000AW, WF56H9100AG, WF42H5000AW, WA52A5500AC, and WA50R5200AW. If your model number starts with WF or WA and was manufactured after 2015, this code almost certainly means one of the three causes described above.
If you are unsure whether this repair is worth doing, I can give you an honest assessment during the diagnostic visit. For a machine that is fewer than 8 years old, a water inlet valve replacement almost always makes financial sense compared to replacing the washer.
4E code still showing after checking hoses and screens? Call us at (720) 447-8577 or book online. I carry Samsung OEM inlet valves on the truck and can typically resolve this in under an hour in the Denver metro area.
Call Victor — Same-Day Washer Repair in Denver
I’m Victor, the technician and owner behind Easy Appliances Repair. I service Samsung washers throughout Denver and the surrounding metro area including Highlands Ranch, Littleton, Aurora, and Centennial. If you’ve worked through the checklist above and the 4E code is still showing, the inlet valve needs to be replaced. Most Samsung washing machine repairs are completed same-day. Call (720) 447-8577 or book online below.
