Editorial & technical review
- Written by ApplianceWorth Editorial Team
- Technically reviewed by Victor — appliance technician
- Last reviewed 2026-07-01
- Applies to Samsung washers
- Confidence medium
- Also displayed as 4C2, 4E2
- Sources Manufacturer service documentation and field-repair experience · Methodology · Report a correction
What this code means
The washer sensed an unexpected water temperature at the beginning of the fill. Reversed hot/cold hoses are a common cause, but a temperature sensor or control fault is also possible.
Most likely causes
- Hot and cold supply hoses are connected to the wrong valves
- One supply valve is closed, causing an unexpected temperature mix
- The water-temperature thermistor or its wiring is out of range
- The inlet valve or main control is not operating correctly
Safe checks for the owner
- Compare the H and C markings on the washer with the home valves and correct crossed hoses.
- Make sure both supply valves are open and the hoses are not kinked.
- Run a cold cycle after correcting the connections and watch for a repeat code.
Estimated U.S. repair cost
$190–$390, depending on model, access, parts availability and local labor.