Rehlko

I/O MODULE NOT INSTALLED

UnclassifiedGeneral

What This Code Means

Service Required LED flashes; System ignores the board

Possible Causes

  • •Software detects an I/O module that is connected but not expected by the setup program

Suggested Actions

  1. 1Check that the number of I/O modules expected in the Setup Program matches the number of modules installed on the transfer switch
  2. 2Check that the I/O module address DIP switches are set correctly
  3. 3Check the diagnostic LED

Related Rehlko Fault Codes

I/OMODULECOMMSLOSTI/OMODULECOMMUNICATIONSLOSTI/O MODULE NOT FOUNDI/OMODULELOSTCOMMI/O MODULE LOST COMMI/OMODULENOTFOUNDI/O MODULE COMMUNICATIONS LOSTI/OMODULENOTINSTALLEDHWTIGH SDHIGH ENGINE TEMPERATUREINPHASE MONITOR (IPM) SYNCHING
Browse all Rehlko fault codes

ASK RUDY ABOUT THIS FAULT

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

GET THE ANSWER

Free account required — we'll bring your question with you.