I/OMODULENOTFOUND
UnclassifiedGeneral
What This Code Means
Service Required LED flashes; Software logs the message I/OModuleNotFound
Possible Causes
- •System does not detect an I/O module at an expected address
Suggested Actions
- 1Check that the number of I/O modules installed matches the number expected by the setup program
- 2Check that the I/O modules are connected
- 3Check that the address DIP switches are set correctly
- 4Check the diagnostic LED to verify that the module is receiving power and communicating with the controller
Related Rehlko Fault Codes
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Get a diagnosis walkthrough for I/OMODULENOTFOUND on your specific Rehlko unit — cited to the OEM manual, not a forum guess.
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