LG · Washing Machine
LG Washing Machine LE Error Code
Locked motor—rotor position sensor did not confirm drum rotation
What this error means
LG washing machine LE indicates a Locked Motor fault—the inverter drive energizes the stator but the rotor position sensor (RPS/hall sensor) does not confirm expected drum movement within the detection window. This is unrelated to Samsung LE (leak). On WM4000HWA and WM3900HWA direct-drive platforms, LE commonly traces to a failed hall sensor 6501KW2002A ($12–35), foreign object jamming the drum, or a seized bearing—not the main PCB as a first guess. The sensor mounts on the stator at the rear; resistance typically reads 5–15 kΩ at room temperature depending on pin pair.
How LE is detected
LG direct-drive washers eliminate belts by mounting the rotor directly on the drum shaft. The hall sensor 6501KW2002A reads magnetic pole position so the inverter can commutate the stator windings. When the sensor reads open, short, or erratic—or when the drum physically cannot turn—LE latches before or during wash agitation and spin. Overloading with wet heavy comforters can stall the drum momentarily and trigger intermittent LE that clears after power cycle; true sensor failure repeats on light loads.
Rear panel access is required for meaningful LE diagnosis. Unplug the washer, remove the rear cover screws, and locate the large circular rotor secured by a single central bolt. Do not remove the rotor until you photograph wire routing—the hall sensor harness routes along the stator and is easy to pinch on reassembly. With the belt-less design, rotate the drum by hand from inside the tub: smooth rotation suggests electrical fault; grinding or hard stop suggests bearing, coin under tub, or motor jam.
Multimeter testing of 6501KW2002A uses the service chart pin pairs—typically 5–15 kΩ. Open or zero ohms confirms replacement without removing the stator. When replacing, align the sensor fully into the stator pocket until the clip seats; an air gap causes intermittent LE only at high RPM. Some WM4000HWA revisions use updated sensor subtypes—match the part number on the old sensor body.
Related LG codes OE (dishwasher drain—not this appliance), UE (unbalance), and dE (door lock) often appear in owner searches alongside LE. Document that your LE is on an LG washer motor circuit before following Samsung or Bosch LE guides—cross-brand advice causes misdiagnosis. If LE followed a power surge, inspect the noise filter board at the rear for burnt traces before ordering a sensor.
Common causes
- Failed rotor position hall sensor 6501KW2002A reading open or out of 5–15 kΩ spec
- Loose or corroded harness connector at the hall sensor or inverter board
- Physical drum jam from bra wire, coin, or sock between tub and basket
- Seized tub bearing causing rotor stall under load—often preceded by rumble noise
- Overloaded drum stalling motor on heavy items before sensor confirms rotation
- Inverter board fault not commutating stator windings—after sensor and mechanical rules out
- Damaged rotor magnets or stator wiring from prior service misalignment
Step-by-step fixes
- 1Unplug washer; attempt to rotate drum by hand through the door—note any grinding or hard spots indicating mechanical jam.
- 2Remove rear panel screws; inspect harness from inverter to hall sensor for chafing or loose clip at stator.
- 3Disconnect hall sensor harness; measure resistance on 6501KW2002A per LG chart—replace if outside 5–15 kΩ or open.
- 4If mechanical bind exists, remove rotor bolt (secure rotor with strap—it is magnetic), pull rotor, inspect for foreign object between stator and rotor air gap.
- 5Install new 6501KW2002A fully seated in stator pocket; route harness away from rotor bolt path; reinstall rotor and torque bolt to spec.
- 6Reconnect rear panel; plug in; run Spin Only with empty drum—confirm LE cleared before loading.
- 7If LE persists with new sensor and free drum rotation, test inverter board connections or schedule professional stator/inverter diagnosis.
When to call a technician
Request LG-trained service when LE continues after hall sensor replacement and confirmed free drum rotation, or when bearing rumble accompanies LE—stator/inverter replacement exceeds typical DIY scope. WM3900HWA stacked units need secure bracing before rear service. Have sensor part 6501KW2002A or exact sub revision from the removed unit when ordering.
Affected models
- LG WM4000HWA
- LG WM3900HWA
- LG WM3500CW
- LG WM9000HVA
- LG WM3700HWA
Prevention & maintenance
- Avoid washing heavy comforters alone on direct-drive LG units—LE often starts as momentary motor stall under overload.
- Keep rear panel harness clips engaged after any service—pinched hall sensor wires cause intermittent LE.
- Replace hall sensor at first confirmed ohm failure rather than repeatedly power-cycling, which stresses the inverter.