Which statement is true when diagnosing a non-user-error false alarm?

• A. Perform an overall check of the system and look for interference from rodents, water, and outside sources
• B. Disassemble the control panel
• C. Ignore the alarm and wait
• D. Only test the sensors

Answer: (A)

Diagnosing a non-user-error false alarm means looking for environmental or external factors that can trigger the system rather than issues caused by a user.

Performing an overall check of the system and looking for interference from rodents, water, and outside sources is the best approach because it directly targets common environmental triggers. Rodents can chew through wires or create debris that sets off sensors; moisture or water ingress can short circuits or activate water sensors; outside sources like wind, dust, or insects can cause stray detections. By surveying the entire setup and these potential interference sources, you identify the actual cause and prevent recurrances rather than jumping to conclusions about individual sensors or delaying action.

Disassembling the control panel is unnecessary and intrusive at this stage and can introduce new faults or void warranties. Ignoring the alarm and waiting does not address the issue or protect people and property. Testing only the sensors misses other possible causes like wiring problems, power issues, or environmental interference that can trigger multiple parts of the system.