Samsung dishwasher error code

3E

Incoming water too hot

The water coming into the dishwasher is hotter than is safe for the machine.

Try these free fixes first

Unplug the dishwasher before opening any panel.

  1. Check that the hot water feeding the dishwasher is below 176 F (80 C).
  2. Lower your water heater temperature setting if it is set very high.
  3. Run the hot tap at the kitchen sink briefly and restart the cycle.

Still showing 3E?

If your water is a normal temperature and the code stays, a technician should check the temperature sensor.

Temperature sensor (thermistor)Check 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 3E mean on a Samsung dishwasher?

3E on a Samsung dishwasher means: incoming water too hot. The water coming into the dishwasher is hotter than is safe for the machine.

How do I fix Samsung dishwasher error 3E?

Check that the hot water feeding the dishwasher is below 176 F (80 C). Lower your water heater temperature setting if it is set very high. Run the hot tap at the kitchen sink briefly and restart the cycle.

When should I call a repair technician?

If your water is a normal temperature and the code stays, a technician should check the temperature sensor.

Related dishwasher codes

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