Samsung Washer Error Code HE1: What It Means and How It Impacts You
The HE1 error on Samsung washers typically indicates a heating-related fault in models that use an internal heater for steam, sanitize, or hot-water wash cycles. This code appears when the washer detects that the heater is not reaching the expected temperature or the temperature sensor isn’t reporting correctly. Common reasons include a failed heating element, a faulty thermistor/temperature sensor, damaged wiring or connectors, or a malfunctioning control board that no longer drives the heater properly. For users, an HE1 error can cause longer cycles, laundry not being sanitized or cleaned effectively, persistent odors from low-temperature washes, and increased energy use as cycles retry or extend. In some cases, heating faults carry safety risks such as electrical shorts, burning smells, or in extreme scenarios fire risk — so treat this code seriously and power down the appliance before inspecting internal components.
Common Causes
- Failed heating element (open circuit or shorted)
- Defective thermistor/temperature sensor (improper resistance readings)
- Damaged or corroded wiring harness and connectors to heater or sensor
- Main control board or relay/triac failure that cannot drive the heater
- High-limit thermostat or safety cut-out activated
- Blocked steam/vent passages or clogged filters (in combo washer-dryers)
- Firmware or control software glitch (less common)
- Overloaded drum or incorrect cycle selection causing repeated heating attempts
Troubleshooting Steps
- Power-cycle the washer: unplug or switch off the breaker for 1–2 minutes, then restore power to clear transient errors and see if HE1 returns.
- Check if the code appears only on certain cycles: run a cold wash and a hot/steam cycle to confirm if the heater is involved.
- Inspect for odors, burns or visible damage: if you smell burning or see scorching near the control panel or back, disconnect power immediately and call a technician.
- Access service/download mode (if your model supports it) to view error history and confirm heater/thermistor fault codes. Refer to your model’s service manual for the exact procedure.
- Visually inspect wiring and connectors to the heater and temperature sensor for loose pins, corrosion, or melting. Ensure power is disconnected first.
- Test the heater element with a multimeter for continuity; an open circuit usually means the element needs replacement. Also test for unexpected shorts to chassis ground.
- Measure the thermistor/temperature sensor resistance at room temperature and compare to the service manual chart; if out of range, replace the sensor.
- If heater and sensor check out, test the output from the main control board (relay or triac) for proper switching —