LG dishwasher — Error Code NE
The NE code signals that the vario motor, or diverter valve positioning system, is experiencing a malfunction.
What it means
When your LG dishwasher flashes the NE (or nE) error, it indicates an issue with the vario motor, also referred to as the alternating wash valve or diverter motor. This part is attached to the sump and handles the task of routing water to the upper rack, lower rack, or both. Within this assembly, a microswitch monitors the diverter disk's position and sends status updates to the main control board. If the board sends power to the motor but fails to receive the expected signal back from the microswitch in time, the NE error occurs. The cycle stops to prevent poor cleaning results or damage to the wash motor. This usually happens due to a bad vario motor, a stuck diverter disk, a faulty microswitch, or wiring issues between the motor and the PCB.
Likely Causes
- 1 Vario Motor FailureThe diverter motor has suffered a mechanical or electrical burnout, leaving it unable to rotate the diverter disk to shift water flow.
- 2 Faulty MicroswitchThe internal switch responsible for tracking position has worn down or corroded, preventing it from relaying the correct signal to the main control board.
- 3 Jammed Diverter ValveHard water deposits common in areas like Spokane, physical debris, or fractured plastic gears can bind the mechanism and stall the motor.
- 4 Wiring Harness IssueLoose connections or frayed wires at the main control board or motor terminals can disrupt the necessary signal or power flow.
- 5 Main Control Board (PCB) FaultOccasionally, the control board itself fails to supply the 120V AC to the motor or fails to interpret the 5V DC signal returned by the microswitch.
How to clear / reset
To attempt a temporary reset, pull the plug or flip the dedicated circuit breaker for 3 to 5 minutes. After restoring power, try a new cycle. If the motor was simply stalled by a minor blockage, the code might vanish. However, because this error usually stems from a physical failure, a simple power cycle is rarely a permanent solution. If the code reappears immediately or midway through a wash, the underlying component, typically the vario motor assembly, requires replacement.
Common replacement parts
When to call a pro
If a hard reset fails to clear the NE code, it is time to call a professional. Diagnosing this requires a multimeter to check for voltage at the motor and continuity in the microswitch. Accessing the diverter involves sliding the unit out from under your cabinets and working on the sump, which poses a risk of leaks if the seals are not seated correctly. A-Fix Service provides a $90 diagnostic fee (which we waive if you proceed with the repair) and includes a 1-year warranty on all parts and labor.
FAQs
What is the typical cost to resolve an NE error on an LG dishwasher?
Depending on your specific model and local labor rates, replacing the vario motor typically runs between $150 and $250.
Is the NE error a repair I can handle myself?
If you are comfortable using a multimeter to test live voltage and have the skill to remove the dishwasher from its enclosure to reach the sump, you can perform this repair. Otherwise, professional assistance is recommended.
Will the NE code eventually clear on its own?
No. The NE code is a notification of a mechanical or electrical failure. While a reset clears the screen, the error will trigger again once the control board attempts to operate the diverter.
How much time does this repair usually take?
A skilled technician can typically diagnose the electrical issue and swap out the vario motor assembly in about 45 to 60 minutes.
Is it safe to keep running the dishwasher if it shows an NE code?
Usually, the dishwasher will stop the cycle and drain automatically. Continuing to try and run it can lead to poor dish cleaning and unnecessary strain on the main wash pump.
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