Error code
Samsung Washing Machine 4C Error - Not Filling With Water
Samsung washing machine 4C usually means the washer is not taking in enough water within the expected time. Check the water tap, inlet hose, visible inlet filter and household supply first, then stop if 4C returns with a normal supply.
Quick answer
4C: The washer is not filling with water properly.
Meaning
The washer is not filling with water properly.
First safe check
Turn the washing machine off and unplug it from the mains before checking hoses or connections.
Stop if
Disconnect power before checks, isolate the water before loosening any hose, and stop if access is awkward, the connection is seized, or the fault points to the inlet valve or wiring.
Who to call
Call an engineer if 4C returns despite a normal water supply, the inlet valve hums but no water enters, the inlet connection leaks, the hose and filter are clear, or the diagnosis would require opening the machine.
Medium severity: check safely and stop if it returns. Disconnect power before checking accessible parts where the appliance guidance says to do so.
Fix time
5-20 minutes
Difficulty
Easy if the hose is accessible
Most first checks are supply checks: tap position, hose route, visible filter, and one short fill test.
Expected outcome: A closed tap or kinked hose may clear quickly; repeat 4C with a normal supply points to inlet-valve, sensing, or control diagnosis.
What does this error code mean?
Samsung washing machine 4C usually means the appliance is not receiving enough incoming water. It is a fill-water fault, so the first checks should focus on the water supply into the machine rather than the drain path.
A closed tap, kinked inlet hose, low household pressure, or blocked inlet filter can all cause 4C. If the washer has recently been moved, the hose may be trapped behind the appliance or connected poorly, so check only what is visible and safely accessible.
If the machine fills but then cannot drain, compare Samsung 5C. If the level reading seems unreliable rather than the supply being weak, compare Samsung 1C or Samsung IE.
Symptoms users may notice
- The machine may not fill at the start of the programme.
- Filling may take much longer than usual.
- The programme may pause near the beginning of the wash.
- The inlet valve may hum even though little or no water enters.
What users often notice
- The code often appears soon after pressing start, when the washer expects water to enter.
- Users often search this as Samsung washer not filling, no water coming in, or 4C even though the tap is on.
Why is this happening?
- Water supply tap closed, partly closed, or recently isolated
- Inlet hose kinked, trapped, crushed, frozen, or connected poorly
- Small mesh inlet filter blocked with grit or scale
- Low household water pressure or temporary supply interruption
- Inlet valve, wiring, or control fault if the visible supply path is normal
What this usually points to
This code usually points to the fill-water path, including the supply tap, inlet hose, inlet filter, household pressure, inlet valve, and control signal.
How to fix this safely
- Turn the washing machine off and unplug it from the mains before checking hoses or connections.
- Confirm the water supply tap is fully open and that other cold-water taps in the home have normal flow.
- Check the visible inlet hose for kinks, crushed sections, frozen areas, or strain behind the appliance.
- If the inlet connection is easy to access, isolate the water first and check the small mesh inlet filter for debris; do not force a seized connection.
- Reconnect everything securely and run one short fill or rinse test; stop if 4C returns, the valve hums without filling, or water leaks from the connection.
Can I fix this myself?
YesYou can usually check the supply tap, visible inlet hose, and accessible inlet filter yourself. If the supply is normal and 4C returns, the fault is likely beyond a safe user check.
Safety boundary: Disconnect power before checks, isolate the water before loosening any hose, and stop if access is awkward, the connection is seized, or the fault points to the inlet valve or wiring.
What not to do
- Do not pull the machine out or disconnect hoses unless the power and water supply are safely isolated.
- Do not force a seized inlet connection.
- Do not assume the pressure sensor is the first suspect; with 4C, start with the incoming water path.
Common misdiagnoses
- 4C can be confused with drainage codes because the cycle stops early, but the key issue is usually water not entering.
- If the drum overfills or the level looks too high, the fault may be closer to OC or 1C than 4C.
Reset steps
- Restore power only after the inlet hose and water supply are secure and dry.
- Run one short fill or rinse programme to check whether water enters normally.
- Stop if 4C returns quickly, the machine hums without filling, or any inlet connection leaks.
Intermittent vs persistent faults
A one-off 4C may follow a temporary water-supply interruption. Repeated 4C warnings usually mean the fill path needs closer checking.
When to call a technician
Call an engineer if 4C returns despite a normal water supply, the inlet valve hums but no water enters, the inlet connection leaks, the hose and filter are clear, or the diagnosis would require opening the machine.
Safety warning
Disconnect the washing machine from the mains before checking any accessible hose, filter, or connection. Turn off the water supply before loosening an inlet hose.
Useful hub links
Related fill water fault codes
Samsung Washing Machine OC Error - Overflow, Overfilling or 0C Warning
Samsung OC usually means the washer thinks the drum is overfilling or the water level is rising too high.
1C Error in Samsung Washing Machine - Meaning, Water Level Checks and Help
1C error in a Samsung washing machine usually means the washer is not getting a reliable water-level reading.
Samsung Washing Machine 5C Error - Not Draining Water
The washer cannot drain the water away properly.
Samsung Washing Machine Error Code IE - Water Level Sensor Problem
The washer is not getting a reliable water-level reading from the pressure sensing system.
Relevant guide
Frequently asked questions
What does 4C mean on a Samsung washing machine?+
Samsung 4C usually means the washer is not filling with water properly or is not seeing enough incoming water within the expected time.
How do I fix Samsung 4C safely?+
Unplug the washer, check the water tap is fully open, inspect the visible inlet hose for kinks, and clean the accessible inlet filter only after isolating the water.
Why does Samsung 4C appear when the tap is open?+
The hose may be kinked, the mesh inlet filter may be blocked, household pressure may be low, or the inlet valve may not be opening correctly.
Is Samsung 4C a drain fault?+
No. 4C is a fill-water fault. If the machine fills but will not empty, compare [Samsung 5C](/samsung/washing-machine/5c/).
Can I keep using the washer with 4C showing?+
No useful wash can run until the machine fills correctly. Pause use and complete the safe supply checks first.
Is 4C the same as 4E?+
On many Samsung washers, 4C and 4E are closely related water-supply warnings, but the exact display wording can vary by model.