Samsung Washer Error Code HE

Understanding the Samsung HE Error on a Washer

The HE error on many Samsung washers typically indicates a problem with the washer’s heating system—commonly the steam or water-heating circuit used for sanitizing and steam cycles. When the control detects that the heater or temperature-sensing circuit is faulty, missing, or reading out-of-range, the washer displays the HE code and may stop or restrict affected cycles. This occurs most often in models with a built-in heater (steam washers or washer-dryer combos) when a heating element fails, a temperature sensor (NTC thermistor) reports erratic values, the heater relay on the main control board malfunctions, or wiring/connectors develop shorts or corrosion.

Common user impacts include: interrupted or canceled steam cycles, longer wash times when the machine attempts retries or falls back to cold cycles, poor sanitization or stain removal (since heated water aids cleaning), error beeps and flashing lights, and potential safety concerns if a short or overheating condition exists. In some cases the washer may still run basic cold-water cycles, but steam features and temperature-controlled sanitation will be disabled until the underlying issue is repaired.

Common Causes

• Failed heating element (open or shorted)
• Faulty NTC temperature sensor/thermistor (incorrect temperature readings)
• Defective heater relay or MOSFET on the main control board
• Damaged or corroded wiring harness and connectors to the heater or sensor
• Blown thermal fuse or safety cutoff
• Moisture intrusion or water damage to the control board or heater connections
• Software or firmware glitch causing false HE detection (less common)

Troubleshooting Steps

1. Power cycle and reset: Turn the washer off, unplug it or switch off circuit breaker, wait 1–2 minutes, then restore power. Some transient faults clear after a reset.
2. Check the user manual and error code guide: Confirm the HE interpretation for your specific Samsung model (manual or Samsung support site). Some models label heater or temperature faults slightly differently.
3. Run a diagnostic/self-test: Many Samsung washers have a service/test mode that reports component status. Use the model-specific sequence to enter diagnostics and look for heater or sensor error results.
4. Inspect visible wiring and connectors: Unplug the washer and check the heater area and control board connectors for loose pins, burned insulation, corrosion, or signs of water damage.
5. Test the heating element: With power off and the heater disconnected, measure continuity with a multimeter. An open circuit usually means a failed element; a short to ground is also a failure.
6. Test the temperature sensor (NTC thermistor): Measure resistance at room temperature and compare with the specification in the service manual. Large deviations or no continuity indicate replacement is needed.
7. Inspect the control board and relay: Look for burned components, bulging capacitors, or damaged relay contacts. If the heater relay is not switching properly, the board may need repair or replacement.
8. Check thermal fuses or safety cutouts: Some models include a thermal cutoff that will open if overheating occurs. Test these for continuity.
9. Try a firmware reset or update (if available): Rarely, software issues cause false HE codes. Check Samsung support for firmware updates or safe reset procedures for your model.
10. When in doubt, call a qualified technician: If testing requires disassembly, mains-voltage checks, or control-board replacement, hire a certified appliance repair technician to avoid injury or further damage.

Maintenance / Prevention Tips

• Use recommended water softener or descaling routines if you have hard water—mineral buildup can shorten heater life.
• Run a regular drum-clean or tub-clean cycle to reduce residue buildup around sensors and heaters.
• Avoid overusing steam or high-temperature cycles unless needed; excessive heat stress can age heater components faster.
• Keep the washer in a dry environment to minimize moisture reaching the control board and connectors.
• Inspect and clean connector pins periodically for corrosion; disconnect power before checking.
• Use proper detergents and avoid excessive suds, which can cause moisture to reach electrical components.
• Ensure the washer is installed level and stable to prevent unexpected door/water intrusion and vibration damage to wiring.
• Replace worn or cracked hoses and seals promptly to prevent leaks that can short electrical parts.
• Schedule professional maintenance if your washer is used heavily (multi-family, frequent steaming).
• Consult the owner’s manual for recommended cycle frequencies and maintenance intervals.

FAQs

Conclusion / Safety Notice

The HE error on Samsung washers usually points to a heating or temperature-sensing problem that disables steam and heated cycles. Because troubleshooting often requires electrical tests and mains-voltage work, prioritize safety: disconnect power before inspecting, avoid running the washer if you smell burning, and do not attempt complex board-level repairs unless qualified.

If basic resets and visual inspections do not resolve the HE code, or if testing reveals an open/shorted heater, faulty thermistor, or damaged control board, contact a certified appliance repair technician or Samsung support. Professional diagnosis ensures safe, correct repairs and helps protect your appliance and home.