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AC Failure
trouble

Kidde FX-5

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What This Code Means

The control panel has lost primary AC power.

Common Causes

  • 1Tripped building circuit breaker
  • 2Blown AC fuse in the panel terminal block
  • 3Local utility power outage

Resolution Steps

Verify the building circuit breaker is ON. Check the 5A fuse located in the AC terminal block inside the panel. Measure the AC input voltage at the panel terminals.

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.Battery MissingThe panel does not detect a battery connected to the charging circuit.

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