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Output Abnormal

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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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Output Abnormal: 4100ES Trouble Code | Fire Alarm Resource Center

Output Abnormal

trouble

Simplex 4100ES

138 views·0 field notes

What This Code Means

An output circuit, such as a NAC, is not in its expected electrical state.

Common Causes

1Blown NAC fuse
2Disconnected notification appliance
3Internal relay failure

Resolution Steps

Check the output circuit for opens or shorts and verify that all fuses on the power supply are intact.

Manual References(3)

1simplex4100ES Fire Control UnitsDatasheet2025Open

2simplex4100ESProgramming2011Open

3simplex4100ESInstallation2017p. 12Open

Field Notes

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Related Codes

No Answer/Bad AnswerA programmed device is either not responding or is sending invalid data to the panel.Extra DeviceA device is responding at an address that has not been programmed into the system configuration.Class A TroubleA break in the wiring has occurred on a Class A (Style 6 or 7) circuit.DIAGNOSTIC LED ACTIVEThe system diagnostic LED is currently active, indicating a diagnostic process is running or a hardware fault is being signaled.WSOWaterflow Supervisory Open condition.

Related Questions

What does 'IDNet Extra Device' trouble mean on the 4100ES and how do I resolve it?What is IDNet and how does it differ from other SLC protocols like FlashScan or Signature?How do I connect the 4100ES to a network of other Simplex panels using ES Net?

All 4100ES trouble codes 4100ES panel page