What are the symptoms of error code 4C2?

Water feels hot when the washer begins filling, Clothes come out unusually warm after cold cycles, Cycles pause or stop shortly after starting, Temperature selection does not match actual water temperature, Washer displays 4C2 immediately after fill begins

What causes error code 4C2?

Cold hose connected to the hot tap, Hot and cold taps reversed at the wall, Household plumbing incorrectly labeled, Cross‑connected hoses after maintenance, Hot water backflow due to faulty plumbing valves

How do I fix error code 4C2?

Turn off both water taps before adjusting hoses., Verify that the blue (cold) hose is connected to the cold tap., Reconnect hoses so that cold goes to cold and hot goes to hot., Flush both taps for several seconds to clear residual hot water., Restart the washer and run a short cycle to confirm proper temperature., If plumbing labeling is incorrect, mark taps clearly to avoid future mix‑ups.

Samsung Washer - 4C2 Error Code

Cold water hose is connected to the hot water tap.

Meaning

Cold water hose is connected to the hot water tap.

The 4C2 error indicates that the washer detects hot water entering through the cold-water inlet. Samsung specifies that this occurs when the cold hose is mistakenly connected to the hot tap. This can deform laundry, disrupt temperature control, and cause cycles to fail. The washer monitors inlet temperature during fill, and when the expected cold-water temperature is exceeded, it triggers the 4C2 code to prevent damage.

Symptoms

Water feels hot when the washer begins filling
Clothes come out unusually warm after cold cycles
Cycles pause or stop shortly after starting
Temperature selection does not match actual water temperature
Washer displays 4C2 immediately after fill begins

Causes

Cold hose connected to the hot tap
Hot and cold taps reversed at the wall
Household plumbing incorrectly labeled
Cross‑connected hoses after maintenance
Hot water backflow due to faulty plumbing valves

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Step-by-Step Fixes

Turn off both water taps before adjusting hoses.
Verify that the blue (cold) hose is connected to the cold tap.
Reconnect hoses so that cold goes to cold and hot goes to hot.
Flush both taps for several seconds to clear residual hot water.
Restart the washer and run a short cycle to confirm proper temperature.
If plumbing labeling is incorrect, mark taps clearly to avoid future mix‑ups.

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Safety Notes

Unplug the washer before disconnecting hoses.
Do not overtighten hose connections; this may damage threads.
Avoid running cold‑only cycles with hot water connected, as this may deform fabrics.

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Applicable Models

Show Models

5000 Series: WW25FG5B34BEAC

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Other Samsung Washer Error Codes

Show All Error Codes

Model-Specific Notes

The WW5000F/B700 platform automatically drains for 3 minutes when 4C or related water-supply errors appear, and the power button is disabled during this period.

Disclaimer

The information provided on this page is for educational and informational purposes only. Repairs involve electrical, mechanical, and water-related risks. Always follow manufacturer instructions and consider contacting a qualified technician for diagnosis or repair.