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Notifier
Nfs 320
Dirty 1
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Trouble Codes
Notifier
Nfs 320
Dirty 1
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DIRTY 1: NFS-320 Trouble Code | Fire Alarm Resource Center
DIRTY 1
maintenance
Notifier NFS-320
73 views
What This Code Means
The detector is dirty and needs cleaning.
Common Causes
1
Dust accumulation
2
Environmental contaminants
Resolution Steps
Clean the detector.
Manual References
(2)
1
notifier
NFS-320
Operations
2011
p. 21, 68, 70, 5
Open
2
notifier
NFS-320C
Datasheet
2017
Open
Getting DIRTY 1 on your NFS-320?
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Field Notes
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Related Codes
LO VAL
The detector chamber reading is too low or internal elements are failing.
BAT.BACKUP RAM
The RAM battery backup voltage is low.
INVREP
The device has returned a response to the panel that the panel did not recognize.
PRLOSS
The output module or new sounder base lost power.
SYS INITIALIZATION
The devices are currently initializing.
Related Questions
What are the main differences between the NFS-320 and the NFS2-640?
What does the INVREP trouble mean on an NFS-320, and what are the most likely causes when a single device shows this after being replaced?
What are the NAC circuit specifications for the NFS-320, and how does the shared 6-amp power supply limit total NAC loading?
DIRTY 1
maintenance
Notifier NFS-320
73 views
What This Code Means
The detector is dirty and needs cleaning.
Common Causes
1
Dust accumulation
2
Environmental contaminants
Resolution Steps
Clean the detector.
Manual References
(2)
1
notifier
NFS-320
Operations
2011
p. 21, 68, 70, 5
Open
2
notifier
NFS-320C
Datasheet
2017
Open
Getting DIRTY 1 on your NFS-320?
Ask TroubleShooter AI for help
→
Field Notes
Loading field notes...
Sign in
to share a field note
Related Codes
LO VAL
The detector chamber reading is too low or internal elements are failing.
BAT.BACKUP RAM
The RAM battery backup voltage is low.
INVREP
The device has returned a response to the panel that the panel did not recognize.
PRLOSS
The output module or new sounder base lost power.
SYS INITIALIZATION
The devices are currently initializing.
Related Questions
What are the main differences between the NFS-320 and the NFS2-640?
What does the INVREP trouble mean on an NFS-320, and what are the most likely causes when a single device shows this after being replaced?
What are the NAC circuit specifications for the NFS-320, and how does the shared 6-amp power supply limit total NAC loading?
