Error code
Samsung Washing Machine Error Code 4C2
The washer is detecting an unsafe incoming water temperature or a supply-hose setup problem. The most likely cause is hot and cold water hoses connected incorrectly. Check first: check that the inlet hose is connected to the correct supply and that the incoming water is not excessively hot.
Quick answer
4C2: what does it mean and how to fix
What does it mean?
The washer is detecting an unsafe incoming water temperature or a supply-hose setup problem.
How to fix first
Turn the machine off and unplug it from the mains.
Why is this happening?
Hot and cold water hoses connected incorrectly
When should I call an engineer?
Call an engineer if the water supply is connected correctly but 4C2 returns, or if the machine still misreads the incoming water conditions.
What does this error code mean?
Samsung washing machine error code 4C2 usually means the appliance is receiving water that is too hot, or it thinks the incoming water supply is connected incorrectly. In many cases, this happens when the hot and cold connections are reversed or the incoming water temperature is outside the safe range.
Check first whether the machine is connected to the correct water supply and whether the incoming water feels unusually hot. If the washer is struggling to fill at all, compare the symptoms with Samsung 4C, while abnormal water-level behaviour can overlap with Samsung 1C.
In practice, 4C2 is commonly linked to Hot and cold water hoses connected incorrectly, Incoming water temperature too high for the programme, or Water supply or sensor issue making the washer misread the inlet temperature.
Why is this happening?
- Hot and cold water hoses connected incorrectly
- Incoming water temperature too high for the programme
- Water supply or sensor issue making the washer misread the inlet temperature
How to fix this safely
- Turn the machine off and unplug it from the mains.
- Check that the inlet hose is connected to the correct supply and that the incoming water is not excessively hot.
- After correcting the supply setup, run one short cold-fill programme; if the machine still cannot fill properly, compare the fault with Samsung 4C.
Can I fix this myself?
Yes4C2 is often worth checking yourself because the first fix is usually external: confirming the hose connection and incoming water temperature.
Safety boundary: Stop if the hoses are damaged, leaking, or the next step would involve opening the appliance to reach valves or sensors.
When to call an engineer
Call an engineer if the water supply is connected correctly but 4C2 returns, or if the machine still misreads the incoming water conditions.
Safety warning
Disconnect the appliance from the mains before adjusting hoses and turn off the water supply if you need to reseat any connection.
Useful hub links
Related fill water fault codes
Samsung Washing Machine LC Error - Leak Warning and Safe First Checks
Samsung LC usually means the washer has detected a leak risk or water where it should not be.
Samsung Washing Machine OC Error - Overflow, Overfilling or 0C Warning
Samsung OC usually means the washer thinks the drum is overfilling or the water level is rising too high.
Samsung Washing Machine 1C Error - Water Level Reading Problem
Samsung 1C usually means the washer is not getting a reliable water-level reading.
Samsung Washing Machine 4C Error - Not Filling With Water
The washer is not filling with water properly.
After resolving this fault, use the right wash setting to help prevent repeat issues.
Relevant guide
Frequently asked questions
Can I keep using a Samsung washing machine with 4C2 showing?+
Not until you have checked the water supply setup. If the wrong water temperature is entering the machine, stop and correct that first.
Will resetting clear Samsung 4C2 permanently?+
Only if the hose setup or water temperature issue has already been fixed. A reset alone will not solve a wrong water-supply connection.
Is Samsung 4C2 dangerous?+
It can be if very hot water is entering the washer unexpectedly or if you are adjusting leaking hose connections without isolating the supply.