LG Dishwasher Error HE
⚡ Quick Answer: The LG Dishwasher HE error code indicates a malfunction in the heating system, preventing the water from reaching the proper temperature needed for ef... ✅ DIY Fixable
What Does Error HE Mean?
The LG Dishwasher HE error code indicates a malfunction in the heating system, preventing the water from reaching the proper temperature needed for effective cleaning and drying. This can lead to poor performance, such as inadequate drying or cleaning during cycles. Common causes include a faulty heating element, a defective temperature sensor, or issues with the control board. If the HE error persists after attempting basic resets, further diagnosis is necessary.
Common Symptoms:
- HE displayed on control panel mid‑cycle or at start
- Dishwasher fails to heat water adequately
- Poor cleaning and drying performance due to lack of heat
- Error persists even after restarting machine
Possible Causes
- Faulty heating element (medium)
- Defective temperature sensor / thermistor (medium)
- Control board or wiring issues (medium)
How to Fix Error HE
DIY Fix Basic checks and reset
- Power off the dishwasher — unplug or switch off circuit breaker.
- Wait ~1–5 minutes and restore power to attempt a reset.
- Ensure hot water supply to dishwasher is adequate (run kitchen hot tap before cycle).
- Check that filters and spray arms are clean to support proper heat distribution.
Technician Only Diagnose and repair heating system
- Verify continuity of the heating element with a multimeter; replace if out of spec.
- Test the thermistor resistance at expected temperature range; replace if faulty.
- Inspect wiring harness and connectors for damage and secure connections.
- Check the control board for proper voltage to heater circuit and replace if defective.
Parts needed: Heating element, Thermistor / temperature sensor, Control board (if needed), Wiring harness/connectors
- If error persists after reset and basic checks
- If internal electrical diagnostics/findings are beyond basic user capability (e.g., measuring voltages)
- If heater or sensor replacements do not resolve the issue
Next step
Choose the next step for HE
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Heating Element
Heats the water or air inside the appliance to the required temperature.
- Typical part-only price
- $40 - $95
- DIY difficulty
- Medium
- Estimated time
- 30-45 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Thermistor
Measures precise temperature changes and sends resistance feedback to the control board.
Temperature Sensor
Monitors the internal temperature to ensure correct operation and prevent overheating.
Main Control Board
The central brain of the appliance that controls all components, cycles, and timings.
Model-compatible Dishwasher parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
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Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Dishwasher Cleaner and Descaler
Supports routine removal of mineral scale, grease, and odor. It is maintenance, not a repair for a failed pump, valve, or control.
Braided Dishwasher Inlet Hose
For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| note | The previous model-independent part specification was removed. Verify the full model number and diagnosis in the manufacturer's official parts catalog before ordering. |
|---|---|
| part_number | None |
Common Questions
What does HE error mean on LG Dishwasher?
HE error indicates a malfunction in the heating system, leading to inadequate water heating and poor cleaning.
Can I fix LG Dishwasher HE error myself?
Yes, you can attempt basic resets and checks like ensuring hot water supply, but further diagnosis may require a technician.
How much does it cost to fix HE error?
Repair costs typically range from $50 to $300+, depending on parts replaced and labor.
When should I call a technician for HE?
Call a technician if the error persists after resets or if you cannot diagnose electrical issues.
Sources & References
- LG Dishwasher Guide to Error Codes (official)
Data last verified: 2026-07-31
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