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NAC disabled
maintenance

Kidde FX-5

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What This Code Means

A Notification Appliance Circuit has been manually disabled.

Common Causes

  • 1Intentional disablement for maintenance
  • 2Testing of the system without sounding horns

Resolution Steps

Re-enable the NAC using the panel's Disable button/menu to restore notification capability.

Manual References(2)

Field Notes

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Related Codes

Charger TroubleThe panel detected a fault in the battery charging circuit.AUX Power TroubThe panel detected a trouble condition in the auxiliary power circuit.Battery BadThe standby battery has failed a load test and is no longer reliable.DACT Configuration TRBLThe F-DACT1(F) dialer is either not programmed or contains unverified configuration changes.AC FailureThe control panel has lost primary AC power.

Related Questions

Why does my FX-5 show a NAC circuit trouble even though all appliances are wired and the EOL resistor is installed?How do I clear a ground fault trouble on the Kidde FX-5 when the Ground Fault LED stays lit?What battery size fits inside the FX-5 cabinet, and what is the maximum Ah rating the charger can support?
All FX-5 trouble codesFX-5 panel page