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DIRTY1maintenance

Notifier NFW2-100: DIRTY1

Notifier NFW2-100·0 views·0 field notes

What This Code Means

Maintenance alert indicating that a detector is near but below the allowed alarm limit.

Common Causes

  • 1Dust accumulation
  • 2Environmental contamination
  • 3Aging sensor

Resolution Steps

Clean the detector sensing chamber using compressed air or a vacuum. If the condition persists, replace the detector head.

Manual References(1)

Field Notes

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Related Codes

AC_FAILThe control panel has lost primary AC power.NAC 1 FAULTA fault condition (open or short) on Notification Appliance Circuit 1.TEST FIndicates a detector has failed the automatic test operation of its sensing chamber and electronics.MEMORY FAULTInternal system memory error.Active SupervisoryA condition indicating that a monitored system component is in an off-normal state, such as a sprinkler valve tamper condition.

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All NFW2-100 trouble codesNFW2-100 panel page