Error code
Samsung Washing Machine Error Code 4C
The machine is not filling with water properly The most likely cause is water tap closed or only partly open. Check first: check that the water supply tap is fully open and the inlet hose is not kinked.
Quick answer
4C: what does it mean and how to fix
What does it mean?
The machine is not filling with water properly
How to fix first
Turn the washing machine off and unplug it from the mains.
Why is this happening?
Water tap closed or only partly open
When should I call an engineer?
If the code returns with a normal water supply, the inlet valve, wiring, or control system may need professional attention.
What does this error code mean?
Samsung washing machine error code 4C usually means the machine is not receiving enough incoming water within the expected time. Unlike 1C, which is about level sensing, 4C points first to the water supply path into the appliance.
This code usually points to the water inlet path, including the supply tap, inlet hose, inlet filter, or inlet valve.
Start with this safe check: Turn the washing machine off and unplug it from the mains. If the code returns, the fault worsens, or the appliance does not behave normally, if the code returns with a normal water supply, the inlet valve, wiring, or control system may need professional attention.
Symptoms users may notice
- The machine may not fill, or filling may take much longer than usual.
- The programme may stop near the start of the wash.
Why is this happening?
- Water tap closed or only partly open
- Inlet hose kinked or restricted
- Blocked mesh inlet filter
- Low household water pressure or temporary supply interruption
- Inlet valve or control fault if the supply is normal
What this usually points to
This code usually points to the water inlet path, including the supply tap, inlet hose, inlet filter, or inlet valve.
How to fix this safely
- Turn the washing machine off and unplug it from the mains.
- Check that the water supply tap is fully open and the inlet hose is not kinked.
- If it is safe and accessible, inspect the inlet filter for debris before testing again.
- Confirm the hose is connected to the correct cold water supply if the machine has recently been moved or installed.
What not to do
- Do not pull the machine out or disconnect hoses unless the power and water supply are safely isolated.
- Do not assume the pressure sensor is the first suspect; for 4C, start with the incoming water path.
Reset steps
- Restore power once the water supply checks are complete.
- Run a short fill or rinse programme to see whether the machine now takes water normally.
- Stop if the machine still hums without filling or 4C returns quickly.
Intermittent vs persistent faults
A one-off 4C may follow a temporary water supply issue; repeated 4C warnings usually mean the fill path needs closer checking.
When to call an engineer
If the code returns with a normal water supply, the inlet valve, wiring, or control system may need professional attention.
Safety warning
Disconnect the washing machine from the mains before checking any accessible hose, filter, or connection.
Useful hub links
Related fill water fault codes
Samsung Washing Machine Error Code FE
Overflow or abnormal foam/water-level condition
Samsung Washing Machine Error Code LE
Overflow or leak protection has been triggered
Samsung Washing Machine Error Code OE
Overflow or leak protection has been triggered
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
Can I keep using a Samsung washing machine with 4C showing?+
No useful wash can run until the fill problem is resolved. Pause use and check the tap, inlet hose, and accessible inlet filter first.
Is Samsung 4C a drainage fault?+
No. 4C usually points to water not entering the appliance. Samsung 5C is the more typical drain-related code.
Why does 4C appear when the tap is open?+
The hose may be kinked, the small inlet filter may be blocked, the home supply pressure may be low, or the inlet valve may not be opening.
Should I disconnect the inlet hose?+
Only if you can safely isolate the water and power first. If the connection is awkward or seized, stop and arrange help rather than forcing it.
What does 4C mean on a Samsung washing machine?+
4C usually means the machine is not filling with water properly. If it repeats after one safe retry, treat it as a persistent fault.
How to fix 4C on a Samsung washing machine?+
Turn the washing machine off and unplug it from the mains. Check that the water supply tap is fully open and the inlet hose is not kinked. Stop and escalate if the code returns immediately.
Why is 4C happening on my Samsung washing machine?+
The most common reasons are Water tap closed or only partly open, Inlet hose kinked or restricted, Blocked mesh inlet filter. Repeated returns usually mean the underlying component or system still needs attention.