LG Washer HE Error Code — What It Means
LG defines the HE code as a temporary heater error on washers and washer-dryer combos. The fault is specific to the heater circuit that warms water during certain wash cycles. It is not a drain, inlet, or door-lock message. LG’s official guidance is to perform a power reset first. If the code clears and does not return, the fault was temporary. If HE reappears after the reset, the washer requires professional service to diagnose and repair the heating system.
Common Causes
- Faulty heating element The resistive heater that warms wash water may have failed open or shorted, triggering the HE fault.
- Defective thermistor or temperature sensor The sensor monitoring water temperature may be sending incorrect readings to the control board.
- Loose or corroded heater wiring or connectors Poor connections in the heater circuit can interrupt current flow and produce a temporary error.
- Main control board relay or output failure The board may not be commanding heater power correctly, even if the heater element itself is intact.
Step-by-Step Fix
- Turn off and unplug the washer. Wait at least 10 seconds to allow the control board to fully reset.
- Restore power and restart the cycle. LG recommends this power reset as the first step for HE errors.
- Monitor the display. If the code does not return, the fault was temporary and no further action is needed.
- If HE repeats, disconnect power and access the heater assembly. Consult your model’s service manual for the exact location, usually at the rear of the drum or beneath the tub.
- Inspect the heater element and all wiring. Look for visible damage, corrosion at terminals, or disconnected spade connectors.
- Test the thermistor or temperature sensor. Check continuity and compare resistance to your model’s specification table if available.
- Replace the failed component and reassemble. Run a hot-water test cycle to verify the HE code is cleared and the heater operates normally.
Parts Often Needed
| Part | Notes |
|---|---|
| Heating element assembly | Amazon | Match your exact LG model number to make sure correct wattage and mounting style. |
| Thermistor or temperature sensor | Amazon | Order by model number if heater element tests good but temperature sensing is incorrect. |
| Main control board | Amazon | Required only if the board is not energizing the heater circuit and all other components test good. |
When to Call a Pro
LG specifies that if the HE code returns after a power reset, the washer needs professional service. A qualified appliance technician has the tools and model-specific service manuals to safely test the heater circuit under voltage, measure thermistor resistance against factory tables, and replace sealed components like the heating element or control board. Because the heater operates at line voltage and is integrated with water and electronics, DIY repair carries risk of shock or water damage if not done correctly. If you are uncomfortable working inside the cabinet or do not have a multimeter and the service documentation for your model, schedule a service call.