Samsung dishwasher error code

4C

Water supply problem

The dishwasher is not getting enough water pressure, or the water temperature is wrong.

Also shown on some Samsung models as: 4E

Try these free fixes first

Unplug the dishwasher before opening any panel.

  1. Make sure the water shut-off valve under the sink is fully open.
  2. Check that the inlet hose is not kinked or squashed behind the unit.
  3. Avoid using a FloodSafe-type hose, which can limit water flow.
  4. Confirm water is running normally at other taps in the house, then restart the cycle.

Still showing 4C?

If water supply is fine and the code continues, a technician should check the water inlet valve.

Water inlet valveCheck that the part matches your exact model number (usually on a sticker inside the door or on the back).Find the part
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Questions people ask

What does 4C mean on a Samsung dishwasher?

4C on a Samsung dishwasher means: water supply problem. The dishwasher is not getting enough water pressure, or the water temperature is wrong.

How do I fix Samsung dishwasher error 4C?

Make sure the water shut-off valve under the sink is fully open. Check that the inlet hose is not kinked or squashed behind the unit. Avoid using a FloodSafe-type hose, which can limit water flow. Confirm water is running normally at other taps in the house, then restart the cycle.

When should I call a repair technician?

If water supply is fine and the code continues, a technician should check the water inlet valve.

Related dishwasher codes

LG IEDishwasher: Not enough water fillingLG FEDishwasher: Too much water in tubBosch E14Dishwasher: Flow meter or fill problemBosch E16Dishwasher: Water filling problemBosch E18Dishwasher: Low water levelWhirlpool H20Dishwasher: Not detecting water

Source: Samsung official support · Reviewed 2026-10-01