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Bell 1 circuit faulttrouble

Fire-Lite MS-5024: Bell 1 circuit fault

Fire-Lite MS-5024·2 views·0 field notes

What This Code Means

A fault condition (open or short) exists on Notification Appliance Circuit 1.

Common Causes

  • 1Broken field wiring
  • 2Short circuit in notification devices
  • 3Missing EOL resistor

Resolution Steps

Check NAC 1 wiring for opens or shorts. Verify the presence of the correct EOL resistor. Use Troubleshoot Mode to check circuit voltage.

Manual References(4)

Field Notes

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Related Codes

System Off NormalThe system is in a non-standard operating mode, such as Troubleshoot or Programming mode.Zone 1 disabledA specific initiating zone has been manually deactivated by a user, preventing it from triggering alarms or reporting troubles.AC Loss (shown only when requested)The AC ON indicator turns off and the trouble LED turns on when the AC line voltage drops below the Low Line threshold.Primary Phone Line FaultThe panel has detected a loss of voltage or connection on the primary telephone line.SUPX (X=Zone Number)A condition indicating that a waterflow sensing device, its wiring, or a tamper switch is in an off-normal state.

Related Questions

How do I set zone types on the MS-5024?What is the maximum SLC loop capacity of the MS-5024, and which Fire-Lite detectors and modules are compatible?How do I troubleshoot a Loop Fault or SLC Communication Failure on the MS-5024?
All MS-5024 trouble codesMS-5024 panel page