LG dishwasher — Error Code NE
The NE code indicates a fault with the vario motor (diverter valve) positioning system.
What it means
The NE (often displayed as nE) error code on an LG dishwasher signifies a problem with the vario motor, also known as the diverter motor or alternating wash valve. This component is mounted to the sump and is responsible for directing water flow to either the upper spray arm, the lower spray arm, or both simultaneously. Inside the vario motor assembly is a microswitch that reports the position of the diverter disk back to the main control board. If the control board sends voltage to the vario motor but does not receive the expected alternating signal from the microswitch within a specific timeframe, it triggers the NE fault. This halts the wash cycle to prevent poor wash performance or wash motor cavitation. The issue typically stems from a failed vario motor, a jammed diverter disk, a faulty microswitch, or a wiring harness failure between the motor and the main PCB.
Likely Causes
- 1 Vario Motor FailureThe diverter motor itself has burned out or mechanically failed, preventing it from turning the diverter disk to direct water flow.
- 2 Faulty MicroswitchThe internal positioning switch inside the vario assembly is worn out or corroded, failing to send the position signal back to the main control board.
- 3 Jammed Diverter ValveDebris, hard water scale, or a broken plastic gear is physically jamming the diverter mechanism, preventing the motor from rotating.
- 4 Wiring Harness IssueBroken wires or loose connections at the vario motor terminals or the main control board are interrupting the voltage or signal.
- 5 Main Control Board (PCB) FaultIn rare cases, the main board fails to send 120V AC to the vario motor or cannot properly read the 5V DC return signal from the microswitch.
How to clear / reset
To temporarily clear the NE error code, perform a hard reset by unplugging the dishwasher or flipping the dedicated circuit breaker off for 3 to 5 minutes. Restore power and start a new cycle. If the vario motor was only temporarily stalled by a minor obstruction, the code may clear and the cycle will run. However, because the NE code is triggered by a physical positioning failure, a simple power cycle rarely provides a permanent fix. If the code returns immediately or mid-cycle, the root cause (usually the vario motor assembly) must be diagnosed and replaced.
Common replacement parts
When to call a pro
You should call a professional if a hard reset does not clear the NE code, as diagnosing this fault requires a multimeter to test voltage at the vario motor and continuity through the microswitch. Accessing the diverter assembly requires pulling the dishwasher out of the cabinet and working underneath the sump, which can be difficult and risks water leaks if reassembled incorrectly. Axis Appliance Repair offers a $90 diagnostic (waived on authorized repair) and backs all work with a 1-year parts and labor warranty.
FAQs
How much does it cost to fix the NE error on an LG dishwasher?
Replacing the vario motor typically costs between $150 and $250 including parts and labor, depending on your exact model and local rates.
Can I fix the NE error code myself?
If you are comfortable using a multimeter to test live voltage and removing the dishwasher from the cabinet to access the sump components, you can replace the vario motor DIY. Otherwise, it is best left to a professional.
Will the NE code clear itself?
No, the NE code indicates a mechanical or electrical failure in the water diverter system. It requires a hard reset to clear the display, but will return as soon as the control board tries to actuate the vario motor.
How long does it take to repair this issue?
A professional technician can usually diagnose the electrical fault and replace the vario motor assembly in about 45 to 60 minutes.
Will running the dishwasher with an NE code damage it?
The dishwasher will typically abort the cycle and drain when the NE code is triggered. Continuing to force it to run can result in poorly washed dishes and potential strain on the main wash pump.
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