LG Air Conditioner DC Stepping Motor - 4681A20055A

Restore the precise airflow control and automatic louver movement of your cooling system with the LG 4681A20055A Air Conditioner DC Stepping Motor. This high-precision motor is the mechanical driver for the unit's horizontal or vertical swing blades. Unlike a standard motor, a stepping motor moves in fixed, discrete increments, allowing your air conditioner to "park" the louvers at a specific angle or sweep them smoothly for balanced air distribution throughout the room. If your louvers are sagging, stuck, or making a clicking sound without moving, this motor assembly is the required replacement.

Built with high-quality internal copper windings and a reinforced gear train, the 4681A20055A is designed for whisper-quiet operation. Its compact DC design provides high torque at low speeds, ensuring it can handle the resistance of the louver assembly without slipping or overheating. The motor housing is sealed to protect the internal gears from dust and humidity, ensuring long-term reliability.

1. Safety First: Turn off the air conditioner and completely disconnect it from the power source (unplug it or switch off the circuit breaker).
2. Access the Louvers: Open the front intake panel and remove the louver blade that the motor controls. You may need to remove the front unit casing to access the motor's mounting bracket.
3. Locate the Motor: The stepping motor is typically positioned at the end of the louver assembly, secured by two small screws.
4. Disconnect Wiring: Carefully unplug the small plastic wiring harness from the motor. Always pull from the connector head, never the wires themselves.
5. Swap the Assembly: Unscrew the faulty 4681A20055A motor. Align the "D-shaped" or notched shaft of the new motor with the louver’s socket and secure it with the mounting screws.
6. Reassemble and Test: Reattach the wiring harness and replace the unit casing. Restore power and use the "Swing" or "Direct" function on your remote to ensure the louvers move smoothly and close completely when the unit is turned off.

1. AC Louver Swing Motor – Part Number: 4681A20055A
2. Precision Airflow Management: Enables incremental louver positioning for targeted cooling or heating.
3. Whisper-Quiet Performance: Engineered for low-vibration operation to maintain a quiet indoor environment.
4. Durable Gearset: High-strength internal components resist mechanical wear and stripping.
5. Direct OEM Fit: Features exact shaft dimensions and mounting patterns for select LG indoor units.
6. OEM-Quality Part: A genuine LG replacement designed to match the specific voltage and torque curves of your appliance.