Interlogix Concord 4 REV J Installation Manual - Manual (Page 113)

Chapter 4: Testing and troubleshooting
Concord 4 Installation Manual 107
No incoming AC voltage at panel terminals 1 and 2.
1. Unplug the AC power transformer and disconnect the wires from the
transformer and the panel.
2. Check transformer to panel wire for short or open circuits.
3. Plug in the transformer and check for 16.5 VAC at the transformer
unconnected terminals. If it shows zero (0) volts, replace the transformer.
WARNING: Do not check for voltage by touching two live wires together. This
may damage the transformer.
Touch pad display indicates System Low Battery or voice sounds, “System
low battery.”
• Check that the backup battery is installed correctly and the AC power
transformer is plugged in.
• Measure the incoming AC voltage at panel terminals 1 and 2. It should read
about 16.5 VAC.
• Check for 11.75 to 13.8 VDC battery voltage between the backup battery
spade lugs. If the battery voltage is not within this range, replace the battery.
Note: When the panel is running a backup battery test, the reading at the
connected battery can range from 11.2 to 13.5 VDC. The panel automatically
runs a backup battery test under the following conditions: (1) on initial power-up,
(2) during user sensor test, (3) once every minute when backup battery has
failed, (4) once every 24 hours at the programmed STIME (UL 98 Options off) or
once every 4 hours (UL 98 Options on).
With the AC power transformer plugged in, the panel automatically charges the
battery. While the battery is charging for the first time, it is normal for the system
to indicate System Low Battery. This can take a number of hours depending on
the initial battery charge. Once the battery reaches 12.5 VDC (full charge as
measured while in battery test), the condition clears. If the trouble condition
persists after 24 hours, replace the backup battery.
The touchpads flash AC or display AC Power Failure/AC Failure After
pressing STATUS the panel continues to operate from backup battery.
• Check the AC circuit breaker to be sure the circuit is live.
• Check for proper panel and transformer wiring.
• Check that the transformer is plugged into a nonswitched outlet and secured
with the provided screw.