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Error code reference

LG Washer Error Code 6E

Water Heater Error-Heater is not operating (no operation of HE detected).

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What the 6E error code actually means

The 6E error means your LG washer's built-in water heater is not working, so the machine detected no heating activity when it expected to find some. This usually points to a faulty heating element, a wiring problem, or a control board issue. Turning the washer off and back on can sometimes clear it, but if it comes back, a technician will need to inspect the heater and related components.

Diagnostic procedure

The full 6E procedure

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1
First diagnostic step
Release error by turning off Power S/W.
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Most common causes of 6E

Ranked by how often they cause this code
  1. 1Failed Heating Element
  2. 2Heater Relay Failure on Control Board
  3. 3Wiring Harness or Connector Issue
  4. 4Faulty NTC Thermistor
  5. 5Transient Control Board Fault

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Questions people ask about 6E

What does 6E mean on a LG washer?
The 6E code on an LG washer indicates a Water Heater Error, meaning the control board detected no operation from the internal heating element during a cycle that requires heated water. The machine stops the cycle to prevent issues caused by the heater not functioning as expected. This code can result from a failed heating element, a bad relay on the control board, wiring problems, or a faulty thermistor.
Is it safe to continue using the washer when the 6E code is showing?
You should not continue using the washer while actively ignoring the 6E code on cycles that require heating. The machine stops the cycle specifically because the heater is not functioning correctly, and running it repeatedly without resolving the issue could stress the control board or other components. It is best to diagnose the root cause before resuming normal use.
How do I diagnose the exact cause of the 6E error?
Start by powering the washer off to clear the error, then run a heated cycle to see if the code returns. If it does, use a multimeter to test the heating element for continuity, since an open circuit confirms element failure. Also inspect the wiring harness and connectors at both the heater and the control board for damage or corrosion, and test the NTC thermistor resistance to verify it is within specification. If wiring and components test correctly, the heater relay on the control board may have failed.
Will turning the washer off clear the 6E error?
Yes, the recommended first step is to turn the washer off using the Power switch to release the error and reset the control board. If the 6E code does not return on subsequent cycles that require heating, the fault may have been a temporary glitch. However, if the code comes back, a component in the heater circuit likely needs to be diagnosed and repaired.
How much does it cost to fix a 6E error on an LG washer?
Repair costs depend on which component has failed. A replacement heating element typically ranges from $30 to $80 for the part, while a new main control board can range from $100 to $250 or more. Adding professional labor costs, a complete repair could range from $150 to $400 depending on the diagnosis. A wiring or connector issue resolved without parts will cost less.

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