LG Diagnostics & Fault Manuals
Manufacturer of LG systems and diagnostic equipment.
Equipment Models
Hardware families produced by LG
Craft Ice French Door Refrigerator Series
1 guidesClass: Smart Kitchen Appliances Equipment
WashTower Direct Drive Series
1 guidesClass: Garment Care & Washers Equipment
WashTower Dual Inverter Heat Pump Dryer Series
1 guidesClass: Garment Care & Washers Equipment
WashTower Series
3 guidesClass: Garment Care & Washers Equipment
WashTower Series Washer
1 guidesClass: Garment Care & Washers Equipment
Indexed Error Codes for LG
Machine-verified error code diagnostic walkthroughs
Washer Drum Motor Lock Error
Error code LE indicates a motor lock condition. The main controller detects that the direct-drive brushless DC (BLDC) motor rotor has stalled, the Hall/RPS sensor has failed to report rotation pulses, or an overcurrent state has occurred in the inverter drive.
Heat Pump Thermistor Disconnect
The nE error indicates an open-circuit fault detected on the heat pump evaporator/condenser thermistor loop. The main PCB detected resistance exceeding threshold limits (>500 kΩ or 0V reference signal), triggering an immediate safety lockout to prevent compressor failure.
Exhaust Duct 80% Blockage
The Flow Sense™ system detected an 80% to 89% airflow restriction in the external exhaust vent system, causing excessive thermal buildup that risks tripping the high-limit thermal cutout switch.
Locked Motor Rotor Position Error
The LE error indicates a Locked Motor condition where the Main Control Board detects that the direct drive motor cannot turn or fails to receive rotor positional feedback pulses from the Hall sensor (RPS) during operation.
Direct Drive Motor Locked LE
Error code LE indicates a Locked Motor (Drive Error). The main PCB inverter controller detects that the Direct Drive brushless DC (BLDC) motor rotor is stalled, failing to achieve target RPM, or the Hall-effect rotor position sensor (RPS) feedback signals are missing or erratic.
Locked Motor Rotor Hall Sensor Trip
Error code LE indicates a Locked Motor condition detected by the main control board via the direct drive rotor position sensor (RPS/Hall sensor). This occurs when the tub cannot rotate freely, the Hall sensor fails to report rotational pulses, or an open/short circuit exists in the stator winding harness.
Washer Drum Motor Overload Stalling
Error code 3C indicates an Inverter Direct Drive (DD) motor overload condition. The main inverter control board detects excessive electrical current, abnormal rotor resistance, or a failure in motor commutation feedback, initiating an automatic shutdown to prevent thermal runaway or IPM burnout.
Ice Fan Motor Failure Er IF
The main PCB failed to detect a feedback pulse signal (FG tachometer reading) from the ice maker compartment blower fan motor (BLDC) within 65-115 seconds of commanded operation, tripping the Er IF protection lock.