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Thank you for your interest in the LG Refrigerator. If your LG LTCS20020S 20 cu. ft. Top Freezer Refrigerator is making a loud humming noise or vibrating excessively, it may be a sign of a problem that needs to be addressed. Potential causes for a noisy or vibrating refrigerator motor include issues with the compressor, loose or unbalanced components, worn bearings, or blocked airflow. These issues can lead to increased noise and vibration from the motor, which may require attention to prevent further damage. If problem persist, please reach out to us on social media @LGUSSupport so we can help you further. ^Cris
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