HE1
Samsung Wash Heater Overheating / Heater Circuit Error

Washer-dryer combo shows HE1 and fails to heat water during wash cycles.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Scale buildup on heater causing localized overheating, Faulty NTC sensor on wash heater, Stuck heater relay on PCB, Poor water circulation around heater

How to Fix / Troubleshooting

Safety first: Disconnect power and allow the machine to cool completely before accessing the heater area.

Steps to address:

  • Run a descaling cycle: Run an empty hot cycle with a washer descaler or white vinegar (check Samsung guidelines) to reduce limescale on the heater.
  • Check water level: Ensure the machine is filling to the correct level; low water can expose the heater and cause overheating. If fill is low, investigate 1E/4E issues.
  • Inspect heater wiring: Remove the rear panel and verify that heater and NTC sensor connectors are tight and free of corrosion.
  • Test again: After cleaning and checks, run a hot wash to see if HE1 returns.

When to stop: Persistent HE1 indicates a failing heater or sensor, or a control board issue. Replacement of these components should be done by a professional.

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Repair Difficulty

Hard 4/5

Required Part

Wash Heater Element
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