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NFPA 72-2025
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SLC 1 SHORT FAULT
trouble

Notifier NFW2-100

51 views·0 field notes

What This Code Means

A short circuit condition detected on SLC Loop 1.

Common Causes

  • 1Conductors touching
  • 2Damaged insulation
  • 3Internal device short

Resolution Steps

Disconnect the SLC loop and use a meter to check for shorts between conductors. Sectionalize the loop to locate the specific area of the short.

Manual References(1)

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

Field Notes

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Related Codes

INVREPInvalid reply from the addressable device, indicating a hardware problem.DIRTY2Maintenance alert indicating that a detector needs immediate maintenance due to being within 80% of its alarm threshold for 24 hours.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.COMM FAULT 1The control panel has failed 10 total attempts to communicate with the primary Central Station phone number.

Related Questions

What is the maximum SLC wiring distance and resistance limit for the NFW2-100?Which Notifier intelligent detectors and modules are compatible with the NFW2-100 SLC loop?How do I program the built-in DACT on the NFW2-100 for central station communication?
All NFW2-100 trouble codesNFW2-100 panel page
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.

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