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Nfw2 100
Nac 1 Fault
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NAC 1 FAULT: NFW2-100 Trouble Code | Fire Alarm Resource Center
NAC 1 FAULT
trouble
Notifier NFW2-100
98 views
·
0 field notes
What This Code Means
A fault condition (open or short) on Notification Appliance Circuit 1.
Common Causes
1
Missing EOL resistor
2
Broken wire
3
Short in notification appliance
Resolution Steps
Check for the presence of a 4.7K ohm EOL resistor. Inspect wiring for opens or shorts. Verify all appliances are functional.
Manual References
(1)
1
notifier
NFW2-100
Installation
2005
p. 18, 127, 107, 109, 126 +5
Open
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Field Notes
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Related Codes
INVREP
Invalid reply from the addressable device, indicating a hardware problem.
COMM FAULT 1
The control panel has failed 10 total attempts to communicate with the primary Central Station phone number.
DUCT SUPERVISORY
A supervisory condition has been triggered by a duct smoke detector.
DIRTY2
Maintenance alert indicating that a detector needs immediate maintenance due to being within 80% of its alarm threshold for 24 hours.
WATERFLOW
A device type identifier and event code for a monitor module programmed to monitor sprinkler system waterflow switches, representing a high-priority alarm condition.
Related Questions
Which Notifier intelligent detectors and modules are compatible with the NFW2-100 SLC loop?
What is the maximum SLC wiring distance and resistance limit for the NFW2-100?
How do I program the built-in DACT on the NFW2-100 for central station communication?
NAC 1 FAULT
trouble
Notifier NFW2-100
98 views
·
0 field notes
What This Code Means
A fault condition (open or short) on Notification Appliance Circuit 1.
Common Causes
1
Missing EOL resistor
2
Broken wire
3
Short in notification appliance
Resolution Steps
Check for the presence of a 4.7K ohm EOL resistor. Inspect wiring for opens or shorts. Verify all appliances are functional.
Manual References
(1)
1
notifier
NFW2-100
Installation
2005
p. 18, 127, 107, 109, 126 +5
Open
Getting NAC 1 FAULT on your NFW2-100?
Ask TroubleShooter AI for help
→
Field Notes
Loading field notes...
Sign in
to share a field note
Related Codes
INVREP
Invalid reply from the addressable device, indicating a hardware problem.
COMM FAULT 1
The control panel has failed 10 total attempts to communicate with the primary Central Station phone number.
DUCT SUPERVISORY
A supervisory condition has been triggered by a duct smoke detector.
DIRTY2
Maintenance alert indicating that a detector needs immediate maintenance due to being within 80% of its alarm threshold for 24 hours.
WATERFLOW
A device type identifier and event code for a monitor module programmed to monitor sprinkler system waterflow switches, representing a high-priority alarm condition.
Related Questions
Which Notifier intelligent detectors and modules are compatible with the NFW2-100 SLC loop?
What is the maximum SLC wiring distance and resistance limit for the NFW2-100?
How do I program the built-in DACT on the NFW2-100 for central station communication?
