I/O MODULE LOST COMM

UnclassifiedGeneral

What This Code Means

Communication lost with installed I/O module

Possible Causes

  • •I/O device does not have a correct address specified
  • •I/O device stopped communicating
  • •Lost communication with an installed I/O module

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Get a diagnosis walkthrough for I/O MODULE LOST COMM on your specific Rehlko unit — cited to the OEM manual, not a forum guess.

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