Troubleshooting; Introduction; Problems Found During Self Diagnostics; Table 4: Troubleshooting Problems Found During Self Diagnostics - Bosch D7412G Installation & Troubleshooting Quick Reference Manual

3.0

Troubleshooting

3.1

Introduction

Bosch Security Systems provides this guide to help troubleshoot problems with the D9412G/D7412G/D7212G. To prevent
problems from occurring, read the preceding sections of this guide and the panel's Program Entry Guide to verify that the
panel is correctly installed and programmed.
3.2

Problems Found During Self Diagnostics

The D9412G/D7412G/D7212G Control Panels perform a series of self-diagnostic tests of hardware, software, and program
at start up and reset.
Buzzer sounding is normal at start-up: The on-board buzzer located on the lower right corner of the panel sounds as the
control/ommunicator performs its self diagnostic tests at start up and reset. The tests take less than two seconds. If all tests
are completed successfully, the buzzer turns off. The panel continues periodic internal testing during normal operation. If a
fault is detected during this testing, the buzzer begins sounding. One of the system messages listed below displays at the
command centers.
Symptom
CALL FOR SERVICE appears in
the command center's display. No
buzzer sounds at the Command
Center.
COMM FAIL ROUTE # appears in
command center displays.
PANEL BROKEN appears in the
displays of all command centers, the
command center buzzer sounds, and
the green operation monitor LED
stops flickering or is off.
PARAM FAIL alternates with the
idle text at the command centers, the
command center buzzer sounds, the
green operation monitor LED
continues to flicker, and the panel
sends a BAD PARAM CKSUM report
to the receiver.
SERVC AC FAIL appears in
command center displays.
SERVC BATT LOW appears in
command center displays.
SERVC BATT MSING appears in
command center displays.
D9412G/D7412G/D7212G Installation & Troubleshooting Quick Reference Guide
© 2004 Bosch Security Systems, Inc.
Diagnosis
A command center has
stopped receiving data
from the panel.
The panel has made ten
unsuccessful attempts
to report to the receiver.
A hardware or software
problem has occurred.
The program is
corrupted.
AC power has been
interrupted at
Terminals 1 and 2.
Battery voltage at
Terminals 4 and 5 has
fallen below 12.1 VDC.
The panel cannot detect
a battery at Terminals 4
and 5.

Table 4: Troubleshooting Problems Found During Self Diagnostics

D9412G/D7412G/D7212G
Check the wiring for opens, grounds, or shorts.
See Section 3.6 Communication Failure on page
12. Pressing [ESC] silences the buzzer. The
display clears when communication restores (i.e.,
the receiver acknowledges a report).
Pressing [ESC] does not silence the buzzer. The
panel must be returned to Bosch Security
Systems for repair.
Pressing [ESC] may silence the buzzer.
Silencing the buzzer does not correct the problem:
The corrupted copy of the program in the panel
must be replaced. Load a new copy of the
complete program. The displays clear when the
panel is reset after loading a new program.
Pressing [ESC] silences the buzzer. Restoring
power clears the display.
NOTE: You can program the panel to send an AC
FAIL report to the receiver.
See Section 3.11 Battery and Power Reports on
page 16 for probable causes and remedies.
Pressing [ESC] silences the buzzer. The display
clears when battery voltage reaches 13.7 VDC.
Pressing [ESC] silences the buzzer. Restoring the
battery clears the display.
NOTE: The panel can be programmed to send a
BATTERY MISSING report to the receiver.
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Troubleshooting
Remedy
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