EST LSS4 - Maintenence & Troubleshooting

Chapter5
Ma
in
tenan
ce
&
T
ro
u
blesho
o
ting
WARf4lNG:
Lethal
voItap•es
from
other
with
fire
alarmposer
disconnected!
systemsmay be
present
even
Table
5-1:
System
Troubleshooting
o
dt n PosbeC u e
Code4-AC
Power
Fail
1.
FuseF1openon
power
supply.
Code5-
Battery
Fail
Code6
-
PowerOut
Fail
Code7
-
Ground
Fault
Code8
-
External
Trouble
Code9-
Communications
Trouble
Codeb-
Extraor
Missing
module
CodeE
During
Programming
Initiating
Device
Circuit
Trouble
—
Notification
Appliance
Circuit
Trouble
Trouble
buzzer
pulses
every8
seconds&
NormalLED
extinguished.
2.
Branch
circuit
poweroWor
brown-out
condition.
1. Low
battery
voltage.
2.
Battery
disconnected.
3.
Battery
fuseF3
openon
power
supply.
1.
Signal
Auxiliary
power
shorted.
2.
CB1,F1,F2,orF4
open.
3 Low
Power
Supply
Output
1
Ground
faulton
field
wiring.
1. Off
premise
transmitter
trouble.
1.
Expansion/Option
modules
inoperative/mis-
addressed.ornot
configured.
1.
2.
3.
1
.
2.
3.
1.
LSS4
Installation,
Operation,and
Maintenance
Configuration
doesnot
match
installed
modules
At
leastone NAC
mustbe
assignedto
eachIDC
alarm
input
zone.
Circuit
open.
missingor
wron
9
EOL
resistor.
Zone
disconnect
switch
operated.
Smoke
power
fuseF1
openon
power
supply.
Circuit
open,
missingor
wrongEOL
resistor.
Circuit
shorted,
incorrectly
installed
device.
NAC
fuseF2orF4
open.
PU
failure.
Manual
5.1