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NAC 1 troubletrouble

Edwards EST iO64: NAC 1 trouble

Edwards EST iO64·1 view·0 field notes

What This Code Means

An open or short was detected on NAC 1 or there is a problem with the EOL.

Common Causes

  • 1Broken wire
  • 2Loose connection
  • 3Missing or incorrect EOL resistor

Resolution Steps

Check NAC 1 wiring for continuity and shorts; verify the presence and value of the End-of-Line resistor.

Manual References(1)

Field Notes

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Related Codes

Zone maintenance alertA maintenance alert was detected for a zone.Loop 1 device 000A device on loop 1 has an address set to zero.Ground faultThe panel detected a ground fault.Battery missingThe battery is no longer connected.Internal faultThe control panel detected an internal hardware or software error.

Related Questions

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