HE Moderate Moderate DIY

Samsung Dishwasher HE — Heater temperature detection error

Samsung Dishwasher · Error code HE

What HE Means

The heater isn't reaching expected temperature, or the temperature sensor reading is inconsistent with heater operation. Drying/sanitize may fail.

Symptoms

  • HE on display
  • Dishes come out cold or not dry
  • Cycle takes much longer than usual
  • No steam visible at end of wash

Common Causes

1
Open heating element

Element broken internally — no heat produced.

2
Failed temperature sensor

Thermistor open or out of spec.

3
Main board heater driver failed

Triac/relay not firing element.

4
Loose heater wiring

Quick-connect at element terminals corroded.

How to Fix It

  1. Empty the dishwasher and run a Normal cycle with detergent.
  2. If still no heat, disconnect power and pull the dishwasher to access the heater terminals under the tub.
  3. Test element resistance (~10–40 ohms typical) — open means replace.
  4. Test the thermistor at room temperature.
  5. Inspect the heater wire connectors; clean any corrosion.
  6. If element and sensor test good, replace the main control board.

Parts You May Need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

Common replacement Samsung dishwasher heating element View on Amazon→ Common replacement Samsung dishwasher temperature sensor View on Amazon→

More Samsung Dishwasher Codes

1C 1C — Low water level / fails to start 1E 1E / IE — Filter clogged / heater fault 3C 3C Error — Wash Pump Failure 3E 3E — Hot water supply too hot 4C 4C / 4E — Water Supply Error 4C5 4C5 / 4E5 — Fill timeout with dry tub

All Samsung codes → All dishwasher codes →

Verified against manufacturer documentation: samsung.com

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.