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CO 6 MONTH ALMOST EXPIRED LOG ENABLE
trouble

Simplex 4100ES

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What This Code Means

The Carbon Monoxide (CO) sensor is approximately 6 months away from its expiration date.

Common Causes

  • 1Sensor age
  • 2End-of-life timer approaching

Resolution Steps

Schedule a replacement for the CO sensor module to ensure continuous protection.

Manual References(3)

Field Notes

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Related Codes

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

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?
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