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Page 92 P/N: F01U035325-01 Copyright © 2007 Bosch Security Systems, Inc. DS7400Xi (4+) Reference Guide
General System Problems (Continued)
Symptom Probable Cause Possible Solution
#87 display = Battery Trouble
a) The battery failed a battery test.
b) The battery is defective.
c) The wiring to the battery is
disconnected.
a) If there has just been a power failure, wait at
least two hours for the battery to recharge then
perform a System Reset to re-test the battery
and clear the error.
b) Replace the battery.
c) Check wiring.
#87 display = Zone Trouble
#87 display = AC Power Failure
Fire Alarm displays “000”.
Fire Trouble, no zone number.
Fire Trouble ____________
zone number. Dirty
Chamber ____________
zone number.
a) A zone is not responding to the control
panel.
b) The zone is programmed for “Trouble
on Open” and the loop is open.
There is a power failure and the panel is
operating on battery backup. If there is a
general power failure, wait for the power to
return. If there is not a general power failure
in the building.
a) The transformer is unplugged.
b) The wiring from the transformer is
defective.
c) The circuit to the transformer is off or
defective.
d) The transformer is defective.
e) In some cases, the transformer may
be connected to a circuit controlled by
a switch or a circuit breaker that is
periodically turned off.
The Fire Alarm was caused by the “A” key.
When in Commercial Fire Mode, a ground
fault causes this display.
Fire zone wiring problems.
A multiplex smoke detector has failed its
internal sensitivity test.
a) Check wiring to the zone.
or
If the zone is not to be used, remove from
programming.
b) If using Normally Closed contacts, re-program
zone for alarm on open.
or
If using Normally Open contacts and trouble on
open is desired, check for opens in the loop.
Remove wiring and place an EOL resistor across
the zone to eliminate a problem with the control.
If the trouble goes away, the problem is in the
wiring or in a contact connected to the zone.
a) Plug the transformer in.
b) Check the wiring.
c) Check the circuit and circuit breakers.
d) Replace the transformer.
e) Connect to a circuit that is not controlled this
way.
Use the System Reset command to clear the
display.
See #87 Ground Fault display for solution.
If you try to disable the zone by reprogramming it,
you need to reset the control by either entering then
exiting programmer’s mode, or removing then
restoring power to the control panel.
Clean or replace the dirty smoke detector or
chamber. DO NOT USE WATER TO CLEAN THE
CHAMBER.