AC system failures can occur for a variety of reasons, such as: Age of the System: Older systems are more prone to breakdowns. Wear and Tear: Constant use can lead to parts wearing out. Lack of Regular Maintenance: Skipping routine check-ups can lead to bigger issues. Power Supply Issues: Electrical problems can cause system failures. Refrigerant Leaks: Leaks can lead to inefficient cooling and other issues. These problems can be intricate and might require professional expertise to diagnose accurately. It’s important to note that trying to fix these issues without proper knowledge can lead to further damage and even potential safety hazards. Regular professional maintenance can preemptively identify and correct these problems, keeping your AC unit in optimal condition.