13400 Owner’s Manual
P/N 446613 Issue I Rev. A
B-1
Appendix B : Troubleshooting
CAUTION: Troubleshooting is to be done only by qualified personnel who have been
trained to repair and test this fire alarm system control unit.
Description
Probable Cause
AC Power On LED is not lit and System
Trouble LED is lit.
Low or no AC input power
One or more IDC Trouble LED(s) are lit.
Disabled IDC.
Open IDC wiring.
One or more NAC Trouble LED(s) are lit.
(DS16 or DS17 on Main Board)
Steady - open NAC wiring.
Flashing - shorted NAC wiring.
System Ground LED lit
One or more external field connections
grounded.
System Power fault LED lit
No battery connected or battery fuse
blown (return to factory).
System Trouble LED and Ckt Disabled
LED is lit.
Disabled IDC
Disabled NAC
Disabled city tie
Button functions erratic or non-functional
Check to be sure buttons are not stuck.
Alarm Board Relays don’t work
Board not seated properly.
Cannot silence an alarm.
Check alarm silence inhibit switches to
see if they are set up correctly.
Check if IDC is programmed for
Waterflow/Supervisory.
DS15
Flashing - Positive Ground Fault
Steady - Negative Ground Fault
DS16
Flashing - Shorted NAC E
Steady - Open NAC E
DS17
Flashing - Shorted NAC F
Steady - Open NAC F
DS14
Battery Fault and/or
Power Fault and/or
Option Board Trouble
firealarmresources.com
