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Error code reference

LG Washer Error Code 12E

Switch error (USA designation) equivalent to bE1; Power button pressed continually for more than 12 seconds.

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What the 12E error code actually means

Your LG washer is detecting that the power button appears to be stuck in the pressed position, as if someone is holding it down constantly. This is usually caused by a stuck or broken power button on the control panel. The machine stops normal operation and shows this code to let you know something is wrong with the start or power button.

Diagnostic procedure

The full 12E procedure

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1
Confirm the fault
Power cycle the unit: switch off the breaker for 60 seconds, then restore power. If the code returns, the fault is persistent and the procedure below isolates the cause.
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Most common causes of 12E

Ranked by how often they cause this code
  1. 1Stuck or jammed power button
  2. 2Liquid or debris intrusion under the button
  3. 3Failed power button switch (shorted internally)
  4. 4Faulty user interface (UI) control board
  5. 5Damaged wiring harness between UI board and main control board

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Questions people ask about 12E

What does 12E mean on a LG washer?
The 12E code on an LG washer indicates a switch error, specifically that the power button has been detected as continuously pressed for more than 12 seconds. The washer's control system interprets this as a fault and stops normal operation. This code is equivalent to the bE1 designation used in some LG regional markets. The cause is typically a stuck, shorted, or faulty power button or user interface board.
Will resetting my LG washer clear the 12E error?
A reset may temporarily clear the 12E code, but if the underlying problem with the power button or control board is not resolved, the error will return. To reset, unplug the washer for at least 30 seconds and then restore power. If the code comes back immediately or shortly after restarting, the root cause needs to be diagnosed and corrected before the machine will operate normally.
How much does it cost to repair a 12E error on an LG washer?
Repair costs vary depending on the failed component. If only cleaning or a minor adjustment is needed, the cost may be minimal. Replacing a user interface button assembly or UI board typically involves parts costs ranging from around 30 dollars to 150 dollars or more, plus labor if a technician is hired. Labor rates for appliance repair generally range from 75 dollars to 150 dollars per hour depending on your location.
Can I fix a 12E error on my LG washer myself?
In some cases, yes. Start by powering off the washer and unplugging it, then inspect the power button for any visible sticking, debris, or moisture around it. Cleaning the button area and ensuring it springs back freely when pressed may resolve the issue. If the button is mechanically failed or the UI board is faulty, those components will need to be replaced, which is a more involved repair.
Is it safe to use my LG washer when it shows a 12E error?
It is not recommended to continue using the washer while the 12E error is active. A stuck or shorted power button can cause unpredictable behavior in the control system. Leaving the issue unresolved may also put additional stress on the user interface board or main control board, potentially leading to more extensive damage.

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