Maryland’s humid summers put AC units under heavy strain, but proper care prevents premature failure. Regular maintenance, including coil cleaning and refrigerant checks, extends system life. Changing filters monthly during peak season reduces airflow restrictions. Homeowners should also clear debris from outdoor units to prevent overheating. Installing surge protectors shields sensitive components from storm-related power fluctuations. With consistent care, AC systems last 12–15 years or longer. For Maryland families, avoiding short lifespans means lower costs and reliable comfort through countless summers.