What type of signal indicates a malfunctioning fire alarm system?

A trouble signal is a crucial indicator that a fire alarm system is experiencing a malfunction or is in distress. This type of signal alerts the building occupants or the monitoring personnel that there is an issue, which could range from a failure in a component of the system, such as a faulty sensor or wiring, to a power failure affecting the alarm system’s operation.

Recognizing a trouble signal is vital for ensuring the functionality of the fire alarm system, as it prompts immediate investigation and necessary repairs to maintain safety and compliance with fire codes. Other signals, such as an alarm signal, are intended to notify occupants of an imminent fire threat, while an evacuation signal directs persons to leave the premises. A standby signal, often used in other contexts, indicates the system is ready but not currently in alarm mode. In contrast, the trouble signal specifically denotes a status that requires attention to ensure the alarm system is working correctly and can effectively protect against fire hazards.