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Nfs 320
Signals Silenced

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When diagnosing codes, always check the event history log first. Many trouble conditions are intermittent and tied to environmental factors like temperature or moisture.

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SIGNALS SILENCED: NFS-320 Trouble Code | Fire Alarm Resource Center

SIGNALS SILENCED

trouble

Notifier NFS-320

59 views·0 field notes

What This Code Means

The panel sounder and any activated outputs that are programmed as silenceable have been silenced by pressing the SIGNAL SILENCE key.

Common Causes

1Pressing the SIGNAL SILENCE key
2An active CO alarm condition

Resolution Steps

Check the Alarm message for the location and type of trouble. Correct the condition causing the CO alarm. When you finish correcting the CO alarm condition, press the SYSTEM RESET key to return the control panel to normal operation (indicated by the “System Normal” message).

Manual References(4)

1notifierNFS-320Operations2011p. 20Open

2notifierNFS-320Datasheet2017Open

3notifierNFS-320Datasheet2008Open

Field Notes

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Related Codes

LO VALThe detector chamber reading is too low or internal elements are failing.BAT.BACKUP RAMThe RAM battery backup voltage is low.PRLOSSThe output module or new sounder base lost power.INVREPThe device has returned a response to the panel that the panel did not recognize.System ResetA system command or status message indicating the control panel is clearing all active inputs, interrupting resettable power, and decoupling from the network for 60 seconds.

Related Questions

What are the main differences between the NFS-320 and the NFS2-640?What are the NAC circuit specifications for the NFS-320, and how does the shared 6-amp power supply limit total NAC loading?What batteries does the NFS-320 use, and when is an external battery box required?

All NFS-320 trouble codes NFS-320 panel page