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LG Dishwasher Error Code HE

High Severity 🔧🔧 Moderate DIY

Heater failure — water not heating

The dishwasher heating element is not functioning.

💰 DIY cost: $15–$95 👨‍🔧 Pro cost: $200–$400 Save $185+ by doing it yourself

What Does Error Code HE Mean on a LG Dishwasher?

Heater failure — water not heating.

The dishwasher heating element is not functioning.

What Causes Error Code HE?

Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:

  1. 1
    Heating element open circuit 55% of cases
  2. 2
    NTC sensor failure 30% of cases
  3. 3
    Control board heater relay failure 15% of cases

How to Fix LG Dishwasher Error Code HE

🔧🔧 Moderate DIY Est. time: 30–60 min
Safety first: Unplug the appliance before opening any panels or touching internal components.
  1. 1

    Test heating element

    Test continuity — 15–25 ohms expected.

    🔩 LG dishwasher heater ($45–$95)
  2. 2

    Test NTC sensor

    ~6k ohms at room temperature.

    🔩 LG NTC sensor ($15–$40)
  3. 3

    Replace failed component

    Install appropriate part.

How to Reset Error Code HE

After repair, run full program.

Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.

When to Call a Professional

If element and sensor good, control board relay failed.

Average professional repair cost for this issue: $200–$400

Related Error Codes

Same Code on Other Brands

Error code HE appears on these other brands too. Click to compare:

Find Replacement Parts

Use these links to find the exact replacement parts for your LG Dishwasher:

External links — ApplianceErrors.com is not affiliated with these retailers.

Frequently Asked Questions

What does error code HE mean on a LG Dishwasher? +
Heater failure — water not heating
How do I fix error code HE on my LG Dishwasher? +
Start by Test continuity — 15–25 ohms expected.. If that doesn't resolve it, work through each step in the fix guide above.
How do I clear or reset error code HE? +
After repair, run full program.
Is error code HE serious? +
This is a high-severity error. You should address it soon. Running the appliance may cause further damage.