Samsung Washer 4C / 4E — Water Supply Error
Samsung Washer · Error code 4C
What 4C Means
The 4C (and older 4E) code means the washer is not getting water at the expected rate during the fill step. The control board cannot reach the target level.
Most Likely Fix
Water supply error - washer not filling properly
Tools: screwdriver, pliers, towel
Diagnose first: Usually clogged inlet screens from sediment, or failed solenoid in the inlet valve. Clean screens every 6-12 months in hard water areas.
Find this part on Amazon →If the primary fix doesn't resolve it:
Symptoms
- Washer will not fill or fills slowly
- Cycle stalls at the start
- 4C or 4E on the display
Common Causes
The hot/cold faucets behind the washer must be open all the way.
Debris screens where the hoses meet the valve clog over time.
A pinched supply hose restricts flow.
A valve that will not open electrically.
How to Fix It
- Confirm both supply faucets are fully open.
- Turn off the water, remove the fill hoses, and clean the mesh filter screens.
- Straighten any kinks in the hoses.
- If fill is still poor, test and replace the inlet valve.
Parts You May Need
If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.
Related Repair Guides
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Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.