LG Air Conditioner - Regular A/C Maintenance

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1. Clean the Air Conditioner’s Ultra-Fine Filter and Coils

   If the filter or coils are covered with dust and debris, cooling performance may be degraded, and may cause noise and condensation.

   Note

   For information on cleaning the filter, please see our LG Air Conditioner - Regular A/C Maintenance article for further assistance.

   

2. Adjust the Fan Speed

   Wind sound and noise from operating product may be heard louder if the product capacity is large, or the product is installed in a restricted space.

   

3. Adjust the Air Flow Vents

   If you use a product without ventilation lever, open the vents fully to prevent restricted airflow causing whistling or squeaking noises.

   Note

   The up/down and left/right automatic control function varies by model, so refer to the user manual.

   

4. Check the Install

   Severe vibration or rattling sounds are usually the result of improper installation. If the air conditioner wasn’t installed securely in the window according the directions in the owner’s manual, then the case could rattle or make a loud vibrating noise.