If a technician has determined that a supply in a flexible duct system is leaking, what should be checked?

When a technician identifies a supply leak in a flexible duct system, it is essential to check all connections, including both the inner and outer layers of the duct. Flexible ductwork typically consists of an inner core that carries the air and is surrounded by insulation and an outer layer. A leak can occur in any part of the system, so inspecting both inner and outer connections is crucial to ensure that no air is escaping, which could lead to decreased efficiency and performance of the heating or cooling system.

By checking all connections, the technician can address potential issues like improper sealing or damage that may not be immediately visible. This comprehensive inspection helps to improve system performance and energy efficiency effectively, preventing further issues that could arise from uncorrected leaks or weak connections.

In contrast, focusing only on the inner layer or the outer layer individually may overlook critical leaks and result in incomplete repairs. Evaluating the overall duct material integrity is also important, but it does not emphasize the necessity of checking both layer connections as thoroughly, which is vital in diagnosing and resolving supply leaks in flexible duct systems.