Samsung washer 4C2 error code
- Washer
Samsung 4C2, also shown as 4E2, means the water arriving on the cold inlet is extremely hot. That happens when the supply hoses are crossed: the cold hose is on the hot tap and the hot hose is on the cold tap. Samsung's own guide says this code does not mean the washer needs service. Match the blue hose to the cold tap and the red hose to the hot tap, open both valves, and start the cycle again. 4C2 is different from 4C. 4C means the washer is not getting water at all. 4C2 means it is getting water, but the cold side is hot.
Reviewed August 2025 · sources below
Safe to keep using?
Stop using
Severe overheating requires stopping use until the cause is identified.
- • Unplug the appliance before inspection.
- • Do not continue using the appliance until the cause is identified.
Next step
Still seeing 4C2?
Show a photo or describe the symptom. Answer a few safety-first questions and see whether a part is needed.
Free guided checks · No account required · Don’t open live electrical, gas, or refrigerant equipment
How to fix 4C2
- Turn off both water valves behind the washer before loosening a hose.
- Trace the hoses. Connect the blue hose to the cold tap and the cold inlet on the washer. Connect the red hose to the hot tap and the hot inlet.
- Open both valves fully. A half-open valve can look like a fill problem after the hoses are corrected.
- Plug the washer in and start a cycle. 4C2 should stay off once cold water reaches the cold inlet.
- If 4C appears instead, the washer is not filling. Check the inlet screens. That is a different fault from 4C2.
Call a pro when: Call a plumber if both wall taps produce hot water. The washer hoses are not the cause in that case.
What 4C2 means
Hot/cold supply error — the cold inlet is receiving very hot water, usually because the hoses are swapped.
Likely causes
Many codes resolve with cleaning, resetting, or reconnecting.
Check: Power-cycle the appliance and check for obvious blockages or loose connections.
Est. cost: $0–$0
Wear or electrical failure of an internal part.
Check: If basic checks fail, the faulty component likely needs replacement.
Est. cost: $0–$75
Professional assistance recommended
This issue may be unsafe for DIY repair. Follow the safety guidance above and contact a qualified technician.
Questions about 4C2
What does 4C2 mean on a Samsung washer?
4C2 means the cold water supply is extremely hot. The hot and cold hoses are usually swapped.
Is 4C2 the same as 4C?
No. 4C is no water or low water. 4C2 is hot water on the cold inlet.
Do I need a part for 4C2?
No. Reconnect the hoses. Samsung says a hot/cold error does not require service.
How do I reset Samsung 4C2?
Correct the hose connections, open both valves, and start the cycle again.
Other Samsung Washer codes
Prevent this problem next time
- Follow manufacturer maintenance schedule
- Address small issues before they worsen
Sources
Manufacturer meaning
Hot/cold supply error — the cold inlet is receiving very hot water, usually because the hoses are swapped.
FixApplianceCode guidance
Start with basic checks for Samsung 4C2 before ordering parts.
Source type: Part database
Source: ModelPartFinder + FixApplianceCode editorial
Last reviewed: 2026-10-24
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