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Notifier
Nfs 320
Dirty 1

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Troubleshooting Tip

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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DIRTY 1: NFS-320 Trouble Code | Fire Alarm Resource Center

DIRTY 1

maintenance

Notifier NFS-320

71 views·0 field notes

What This Code Means

The detector is dirty and needs cleaning.

Common Causes

1Dust accumulation
2Environmental contaminants

Resolution Steps

Clean the detector.

Manual References(2)

1notifierNFS-320Operations2011p. 21, 68, 70, 5Open

2notifierNFS-320CDatasheet2017Open

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