Resource Center Tools

Sign In

Sign In

Home
Resources
Trouble Codes
Notifier
Nfw2 100
Ac Fail

Resource Center

Browse

Home Questions252 Trouble Codes688 Panels24 Panel Specs24

Learn

Community

Tools

Common Categories

System TroubleSupervisoryGround FaultNACCommunicationPowerDeviceNetwork

Troubleshooting Tip

When diagnosing codes, always check the event history log first. Many trouble conditions are intermittent and tied to environmental factors like temperature or moisture.

Recommended SupplierSponsored

Fire Alarm Parts for Old and New Systems

Panels, detectors, modules and signals
50+ brands, current and legacy
Order by 3 pm ET, ships same day
90-day warranty on every part

Shop Fire Alarm Parts

Can't find what you need?

Resource Center

Questions Panels Trouble Codes Panel Specs NFPA 72-2025

Legal

Privacy Policy Terms of Use Disclaimer DMCA

Cookie Preferences

Company

About Us Blog Glossary Contact Us

© FACP Manuals LLC. All rights reserved.

Built by Will

AC_FAIL: NFW2-100 Trouble Code | Fire Alarm Resource Center

AC_FAIL

trouble

Notifier NFW2-100

78 views·0 field notes

What This Code Means

The control panel has lost primary AC power.

Common Causes

1Tripped circuit breaker
2Blown AC fuse
3Local power outage

Resolution Steps

Check the primary AC breaker and verify voltage at the panel terminals. Replace the AC fuse if blown.

Manual References(1)

1notifierNFW2-100Installation2005p. 18, 127, 107, 109, 126 +5Open

Field Notes

Loading field notes...

Sign in to share a field note

Related Codes

INVREPInvalid reply from the addressable device, indicating a hardware problem.COMM FAULT 1The control panel has failed 10 total attempts to communicate with the primary Central Station phone number.DUCT SUPERVISORYA supervisory condition has been triggered by a duct smoke detector.NAC 1 FAULTA fault condition (open or short) on Notification Appliance Circuit 1.DIRTY2Maintenance alert indicating that a detector needs immediate maintenance due to being within 80% of its alarm threshold for 24 hours.

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?

All NFW2-100 trouble codes NFW2-100 panel page