Smoke Alarm User Manual

Installation, Operation and Maintenance Manual
Page 8-2 Issue 1
February 2001
8.3 Troubleshooting
The Detector utilises internal communications for continuous self monitoring. Most system faults can be
isolated by use of either the Display Module or LaserNET software. If any of the Detectors' modules are
defective it is recommended that the module be replaced, as they cannot be serviced in the field. Refer
to Tables 8.1 to 8.5 for troubleshooting tips and references.
CAUTION
ANTI-STATIC PRECAUTIONS
WHEN HANDLING ANY ELECTRIC COMPONENTS OR
CIRCUIT BOARDS ANTI-STATIC PRECAUTIONS MUST
BE CARRIED OUT. FAILURE TO DO SO MAY RESULT IN
COMPONENT DAMAGE.
Static discharge can be reduced by adhering to the following guide lines.
(1) Always use conductive or anti-static containers for transportation and storage if returning
any item.
(2) Wear an earthed wrist strap while handling devices and ensure a good earth is
maintained throughout.
(3) Never subject a static sensitive device to sliding movement over an unearthed surface
and avoid any direct contact with the pins or connections.
(4) Avoid placing sensitive devices onto plastic or vinyl surfaces.
(5) Minimise the handling of sensitive devices and Printed Circuit Boards (PCBs).
Table 8.1 Troubleshooting Guide
Module/Device
Detailed
Illustration
Functional Description
Paragraph
Replacement
Procedure
Detector head 8.2 2.3.1 8.4.2
Termination board 8.3 2.3.2 8.4.3
Fan module 8.4 2.3.3 8.4.4
Display Module 8.5 2.4 8.4.5
Intelligent Interface Module 4.6/4.7 2.5 8.4.6
Self Contained Power Supply 8.8 2.6.1 8.4.7