"Deciding whether to repair or replace a component of a piece of hardware once it is in production depends on the specific component, its function, size, and availability. Many components within a piece of Cisco hardware are discreet and cannot be repaired. Therefore, they must be replaced. Other components contain sub-assemblies that can either be repaired or replaced without replacing the entire main component. Another factor to consider is the time it would take to repair the component and its cost. If the labor cost exceeds the price of the component, it makes sense to replace the component."
