GE Concord 4 Installation Manual page 108

Chapter 4: Testing and troubleshooting
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.
Touchpad 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.
• Check that the transformer is supplying AC to the panel.
102 Concord 4 Installation Manual