Keeping your AC system in top shape requires a few simple maintenance steps performed regularly. Start by replacing the air filter every 1–3 months to maintain airflow and indoor air quality. Clean the outdoor condenser coils once a year to prevent overheating, and clear any debris from around the unit. Check refrigerant lines for frost or ice buildup, which can signal a refrigerant leak. Schedule a professional tune-up each spring before the cooling season to catch small issues before they become costly repairs.