What must be done with the trouble signals upon receipt?

Upon receipt of trouble signals, it is essential to investigate within an established time frame. This is because trouble signals indicate that the fire alarm system may have a fault or issue that requires immediate attention to ensure the system operates effectively in an emergency. Investigating promptly helps to identify and address any potential hazards, maintain system reliability, and ensure compliance with safety regulations.

Timely investigation also plays a critical role in preventing false alarms and ensuring that the fire alarm system remains in good working order. It underscores the importance of maintaining the integrity of the safety measures in place within a facility.

While some other actions, like notifying local fire departments or logging entries, may also be part of the overall response to trouble signals, the primary responsibility after receiving such alerts is to conduct an investigation to ascertain the nature of the trouble and take corrective action as needed.