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TEST Ftrouble

Notifier NFS-320: TEST F

Notifier NFS-320·0 views·0 field notes

What This Code Means

This detector has failed the FACP’s periodic detector test for alarm capabilities.

Common Causes

  • 1Internal detector failure
  • 2Sensing chamber fault

Resolution Steps

The detector should be removed and replaced by an authorized service representative.

Manual References(2)

Field Notes

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Related Codes

BAT.BACKUP RAMThe RAM battery backup voltage is low.CO TBLThe CO element on the detector is not working properly.DIRTY 1The detector is dirty and needs cleaning.BLOCKSomething has come between the beam detector and its reflector.Photo/CO (C Sup)Indicates activation of the CO element of a detector, which triggers the SUPERVISORY LED.

Related Questions

How does the NFW2-100 ground fault detection work?What battery size does the NFW2-100 require, and how do I silence a battery trouble condition after replacement?What batteries does the NFS-320 use, and when is an external battery box required?
All NFS-320 trouble codesNFS-320 panel page