Editorial & technical review
- Written by ApplianceWorth Editorial Team
- Technically reviewed by Victor — appliance technician
- Last reviewed 2026-07-12
- Applies to Samsung washers
- Confidence medium
- Also displayed as 4C, 4E
- Sources Manufacturer service documentation and field-repair experience · Methodology · Report a correction
What this code means
The washer did not detect enough incoming water or the expected water-level change during the fill portion of the cycle.
Applicability
Applies to Samsung washers displaying 4C, 4E or nF. The exact display varies by control-panel generation; confirm using the complete model number.
Symptoms
- The washer does not begin filling, or fills very slowly
- The cycle stops early with little or no water noise from the inlet-valve area
Most likely causes
- One or both household water valves are closed or pressure is unusually low
- A supply hose is kinked, frozen or restricted
- Debris or mineral scale is blocking an inlet screen
- A failed inlet valve, flow/pressure sensing problem, wiring fault or control issue
Diagnostic logic
If both hot and cold supply valves are open and full water pressure is confirmed at another fixture, suspicion shifts to the inlet screen filters or the inlet valve itself rather than the household supply. If pressure is low at other fixtures too, the issue is upstream of the washer, not a washer fault.
Safe checks for the owner
- Confirm that both hot and cold supply valves are fully open.
- Inspect the hoses behind the washer for sharp bends, crushing or freezing.
- Turn off the home water and clean the inlet screens carefully without removing them permanently.
Estimated U.S. repair cost
$180–$390, depending on model, access, parts availability and local labor.