What are the common faults of fire detectors?

(1) Common fault phenomena: The fire alarm controller emits a fault alarm, the fault indicator light is on, and the printer prints the type, time, and location of the detector fault.

(2) The cause of the malfunction is the detachment of the detector from the base, resulting in poor contact; Poor contact between the alarm bus and the base; Short circuit caused by open circuit or poor grounding performance of the alarm bus; The detector itself is damaged; And detection

Interface board malfunction, etc.

(3) Troubleshooting method: Re tighten the detector or increase the contact area between the base and the detector clamp spring; Reconnect the bus to ensure good contact with the base; Identify the faulty bus location and update it accordingly

Change; Replace other detectors; Repair or replace the interface board.