How can rust affect the performance of HVAC systems?

Rust can significantly impact the performance of HVAC systems by leading to system failure. When rust forms, often due to moisture and corrosion on metal components, it can obstruct airflow and impair the functioning of critical parts of the system. For example, rust on coils, ducts, or electrical connections can lead to decreased efficiency and potentially cause the system to overheat or short-circuit. As components degrade due to corrosion, the overall reliability of the HVAC system diminishes, increasing the likelihood of breakdowns that necessitate costly repairs or replacements. Therefore, recognizing and addressing rust is crucial for maintaining the longevity and effectiveness of HVAC systems.