The machine detected a water supply problem. 4C can also point to a blocked detergent drawer.
What is error 4C?
On Samsung Washing Machine units, code 4C means water supply problem. The machine detected a water supply problem. 4C can also point to a blocked detergent drawer.
Likely causes
- Kinked or blocked inlet hose
- Low mains pressure (outside 0.5–8 bar)
- Blocked detergent drawer
Safe steps you can take
- Switch off, unplug and check the inlet hose for kinks or damage.
- Make sure the tap is fully open.
- Turn off the water, remove the hose and rinse the mesh filters.
- Remove and clean the detergent drawer.
If the code persists the inlet valve should be checked by a technician.
Video guide
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Watch on YouTubeFrequently asked questions
Is error 4C dangerous?
Usually not; the unit stopped to protect itself. If the code returns after the steps, call a technician.
Is a reset enough?
One reset clears temporary causes. If the code comes back, the real cause remains — don't keep resetting.
How much does the repair cost?
It depends on the part. After diagnosis the service sends the price to your tracking link; nothing is done without your approval.
Is the repair guaranteed?
Services on the platform write the warranty for parts and labour on the service form, which is sent to you as a PDF.
Sources: Samsung UK — 4E / 4C error . Code meanings can vary by model; check your user manual.