Class II - Moderate
The sounder on the panel's main circuit board can fail to alert when there is a malfunction.
Gamewell-FCI, of Northford, Conn.
Class I - Dangerous
The software in the fire alarm system could fail to recognize when a detector needs servicing as a result of the buildup of dust, dirt, or other environmental pollutants, which could result in the system failing to respond in the event of a fire.
Class I - Dangerous
Incoming and outgoing messages to and from the control board can interfere with each other, preventing it from sending a message to the command center in the event of fire.