Page 26 579-1102 Rev H
4007ES and 4007ES Hybrid Fire Alarm Systems Installation Manual
5.9 Troubleshooting
The code produced by the illuminated yellow indicator LEDs corresponds to a trouble that is either occurring on the system, or on the SLC channels.
See Table on page 26 for the 4007ES LED definitions, and see Figure 21: SLC channel trouble LED codes on page 27 for the 4007ES LEDs and
their codes.
IDNAC channel troubles are indicated by yellow LEDs labeled IDNAC TBL and letters A to D. When the IDNAC TBL LED illuminates, the IDNAC channel
is experiencing a trouble. Refer to Figure 22: System trouble LED codes on page 28 or the trouble codes for LEDs A to D. The LED SCROLL
pushbutton can be used to scroll through multiple trouble indicators.
Table 20: 4007ES indicator LEDs
LED: A, B, C, D
Signal various trouble conditions on the 4007ES and its SLC. Refer to Figure 21: SLC channel
trouble LED codes on page 27 and
Figure 22: System trouble LED codes on page 28 for troubles details.
IDNAC TBL
When On steady, refer to Figure 21: SLC channel trouble LED codes on page 27 for
detailed troubles indicated by LEDs A-D.
LED COMM Loss Indicates that the communication between the IDNAC power supply and the CPU is lost.
Scroll Push Button (SW1) Used to scroll through multiple troubles, since only one trouble can be displayed at a time.
Fig 20: LEDs on the 4007ES power supply
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