LG WM3900HWA Locked Motor Error
| CONF | DIAGNOSIS | PART MATCH | ACTION |
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85%
CONF
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Washer Motor Rotor Position Sensor (Hall Sensor)
The Hall Effect sensor monitors the orientation and rotational velocity of the direct-drive motor rotor. If the sensor fails to send a pulse signal to the Main Control Board, the logic controller assumes the motor is physically obstructed (locked) and terminates the cycle to protect the stator windings from thermal runaway. Replacing this sensor restores the feedback loop required for commutation.
SKU: 6501KW2001A
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CHECK PRICE |
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10%
CONF
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Stator Assembly
Internal shorts or open circuits within the copper windings of the stator can lead to insufficient magnetic torque to turn the drum under load. This lack of movement triggers the LE code as the controller detects no change in rotor position despite applied current.
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CHECK PRICE |
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5%
CONF
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Main Power Control Board
The Motor Control Board (integrated into the main PCB) utilizes IPM (Intelligent Power Modules) to drive the three-phase motor. If the switching transistors fail or the logic circuit cannot process the Hall sensor return signal, the system will default to a locked motor error state.
SKU: EBR86462205
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CHECK PRICE |
DIY Repair Guide
Watch exactly how to replace the Washer Motor Rotor Position Sensor (Hall Sensor).