GROUND FAULT: NFW2-100 Trouble Code | Fire Alarm Resource Center
GROUND FAULT
trouble
Notifier NFW2-100
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What This Code Means
This condition indicates a zero impedance from the Fire Alarm Control Panel (FACP) to ground.
Common Causes
1Zero impedance from the FACP to ground
2Connection of a printer or PC to the FACP
3Preexisting ground fault on the panel
Resolution Steps
Check for zero impedance from the FACP to ground. Do not connect a printer or PC to the NFW2-100 FACP if a ground fault exists on the control panel. To disable ground fault detection, remove jumper/shunt from JP7 with the approval of the AHJ.