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Nfs 320
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Trouble Codes
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Nfs 320
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INVREP: NFS-320 Trouble Code | Fire Alarm Resource Center
INVREP
trouble
Notifier NFS-320
104 views
What This Code Means
The device has returned a response to the panel that the panel did not recognize.
Common Causes
1
Device malfunction
2
Incorrect addressing
3
Wiring interference
Resolution Steps
Check the device for functionality, addressing, and wiring.
Manual References
(2)
1
notifier
NFS-320
Operations
2011
p. 21, 68, 70, 5
Open
2
notifier
NFS-320C
Datasheet
2017
Open
Getting INVREP 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.
PRLOSS
The output module or new sounder base lost power.
SYS INITIALIZATION
The devices are currently initializing.
SHORT
The module device has a short circuit on its supervised wiring.
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?
INVREP
trouble
Notifier NFS-320
104 views
What This Code Means
The device has returned a response to the panel that the panel did not recognize.
Common Causes
1
Device malfunction
2
Incorrect addressing
3
Wiring interference
Resolution Steps
Check the device for functionality, addressing, and wiring.
Manual References
(2)
1
notifier
NFS-320
Operations
2011
p. 21, 68, 70, 5
Open
2
notifier
NFS-320C
Datasheet
2017
Open
Getting INVREP 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.
PRLOSS
The output module or new sounder base lost power.
SYS INITIALIZATION
The devices are currently initializing.
SHORT
The module device has a short circuit on its supervised wiring.
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?
