What happens when the PDU overheats?

When the Power Distribution Unit (PDU) overheats, it enters a protection mode that often necessitates a reset period before normal operations can resume. This typically mandates a wait time, such as 5 minutes, to allow the unit to cool down sufficiently. Such a delay is a common safety feature in many electrical systems to prevent damage and ensure that the unit can return to normal function without risk of further overheating.

While other options mention the impacts on flight controls or system functions, they do not accurately describe the specific behavior of the PDU upon overheating. The correct answer reflects the procedural safety protocols related to system resets in response to overheating, indicating the importance of cool down periods for proper operation in aircraft systems.