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Nac Trouble

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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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NAC trouble: FX-5 Trouble Code | Fire Alarm Resource Center

NAC trouble

trouble

Kidde FX-5

66 views·0 field notes

What This Code Means

A Notification Appliance Circuit (NAC) has a wiring fault.

Common Causes

1Open circuit or missing EOL resistor
2Short circuit in notification appliance wiring
3Grounded NAC wire

Resolution Steps

Inspect NAC wiring for opens or shorts. Verify the EOL resistor is present and of the correct value. Check for pinched wires behind notification appliances.

Manual References(2)

1kiddeFX-5 and FX-10Installation2017p. 34, 65, 86, 113, 111 +3Open

2kiddeFX-5 and FX-10 SeriesOperating Instructions2017p. 1Open

Field Notes

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Related Codes

Charger TroubleThe panel detected a fault in the battery charging circuit.DACT Line 1 TrblA ground fault or line fault has been detected on Phone Line 1 of the dialer.Battery MissingThe panel does not detect a battery connected to the 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.

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 codes FX-5 panel page