Maintenance Alertmaintenance

Notifier NFS2-640: Maintenance Alert

Notifier NFS2-640·0 views·0 field notes

What This Code Means

Indicative of dust accumulation that is near but below the allowed limit.

Common Causes

1Dust accumulation
2Environmental dirt buildup in the detector chamber

Resolution Steps

The detector performance may be compromised. The detector should be cleaned or serviced by an authorized representative to prevent it from reaching the 'Maintenance Urgent' threshold.

Manual References(3)

1notifierNFS2-640Datasheet2017Open

2notifierNFS-640Operations2003Open

3notifierNFS-640Datasheet2006Open

Field Notes

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Related Codes

TROUBLA status banner displayed on the LCD indicating that the control panel has detected an electrical fault or a functional issue with a system component or device.INVREPThe device has returned a response to the panel that the panel did not expect.Low Chamber valueA maintenance warning level indicating that the detector chamber reading is too low, which typically signifies a hardware malfunction.FREEZE WARNINGThe temperature read by a Heat+ or Acclimate Plus™ detector has dropped below the low-temperature threshold, typically 40°F (4.44°C).STYLE 6 POS. LOOP xThere is an open circuit on the positive side of loop x.