Hello. Thank you for sharing your review regarding your LG LW2521ERSM Air conditioner. We always aim to provide powerful, efficient, and dependable climate control systems for your home comfort, and we want to help ensure your unit delivers the crisp airflow and precise temperature management you expect.

When an air conditioning system experiences a drop in cooling performance or airflow, reviewing the filtration and external ventilation path can often restore full functionality. We recommend turning off the unit and sliding out the primary mesh filter to ensure it is completely free of dust accumulation, as blocked intake areas heavily restrict air circulation and overall cooling capacity. Additionally, checking that the exterior condenser coils on the rear of the unit are clear of outdoor debris ensures proper heat dissipation, allowing the system to run smoothly and efficiently. For detailed guidance on optimizing your cooling setup and maintaining your Air conditioner's performance, please visit https://www.lg.com/us/support/help-library/troubleshooting-an-lg-air-conditioner-that-is-not-cooling--20152825310030.

Please send us an email at lgdigitalcare@lg.sprinklrsupport.com if you need further support. ^James