LG Washing Machine Error Code nE — What It Means & How to Fix It

What Does This Error Mean?

The nE error means your LG washing machine has detected an electrical problem. The voltage or current reaching the motor or control board is outside the safe operating range. This is a critical error — the washer shuts down to protect its electrical components from damage.

Affected Models

LG WM3900HWA
LG WM4000HWA
LG WT7300CW
LG WM2250CW
LG WM8100HVA

Common Causes

The home's electrical outlet is providing unstable or incorrect voltage to the washer
The washer's power cord or plug is damaged, causing intermittent electrical contact
The main control board has an electrical fault causing abnormal current readings
A power surge or lightning strike damaged the washer's internal electrical components
The wiring harness inside the washer has a loose or corroded connection

How to Fix It

Unplug the washer immediately. Do not attempt to run any cycles while the nE error is displayed.

Electrical faults can be a safety hazard. Always unplug before investigating.
Check the wall outlet by plugging in another appliance like a lamp. Make sure the outlet is providing stable power.

If the outlet is on a circuit with many other appliances, try a different dedicated outlet.
Inspect the washer's power cord and plug for any visible damage — frayed wires, bent prongs, burn marks, or a loose plug.

A damaged power cord should be replaced before using the washer again. Do not tape or splice a damaged cord.
Wait 10 minutes with the washer unplugged, then plug it back into a known good outlet and try starting a cycle.

If the error was caused by a temporary power fluctuation, the reset may clear it.
If the nE error returns, contact LG support at 1-800-243-0000 or a qualified appliance repair technician. The internal wiring or control board needs professional inspection.

Do not continue troubleshooting electrical issues yourself if you are not experienced with electrical work.

When to Call a Professional

The nE error involves electrical components and should be handled carefully. If the outlet and power cord check out fine, a technician needs to inspect the internal wiring and control board. Control board replacement costs $150 to $350 for the part, plus $100 to $200 in labor. Do not use the washer until the electrical problem is identified and fixed.

Frequently Asked Questions

Is the nE error dangerous?

Electrical problems should always be taken seriously. The washer shuts down to prevent overheating or component damage. Do not use the washer until the cause is identified. Unplug it and call a technician if basic checks do not fix it.

Can a power strip cause the nE error?

Yes. LG recommends plugging washers directly into a grounded wall outlet. Power strips and extension cords can cause voltage drops, especially when the motor draws high current during spin. Always use a dedicated outlet for your washing machine.

Should I use a surge protector with my washer?

A quality surge protector can help prevent damage from power surges and voltage spikes. However, make sure the surge protector is rated for large appliances — at least 15 amps. A basic power strip is not the same as a surge protector and will not provide protection.