Daikin MICROTECH III Operating Manual page 54

10.8.11 CC Comm Failure #
This alarm is generated in case of communication problems with the CCx module.
Symptom
Circuit status is Off.
All circuits are stopped immediately.
Bell icon is moving on controller's
display.
String in the alarm list:
Cx OffCmpCtrlrComFail
String in the alarm log:
Cx OffCmpCtrlrComFail
String in the alarm snapshot
Cx OffCmpCtrlrComFail
Reset
Local HMI
Network
Auto
10.8.12 FC Comm Failure Circuit 2 or 3
This alarm is generated in case of communication problems with the Fan module.
Symptom
Circuit status is Off.
All circuits are stopped immediately.
Bell icon is moving on controller's
display.
String in the alarm list:
Cx OffFnCtlrComFail
String in the alarm log:
Cx OffFnCtlrComFail
String in the alarm snapshot
Cx OffFnCtlrComFail
Reset
Local HMI
Network
Auto
D–EOMWC00A07-16_02EN
Cause
Module has no power supply
Module address is not properly set
Module is broken



Cause
Module has no power supply
Module address is not properly set
Module is broken



Operation Manual
Solution
Check the power supply from the
connector on the side of the module.
Check if LEDs are both green.
Check if the connector on the side is
tightly inserted in the module.
Check if module's address is correct
referring to the wiring diagram.
Check if LED are on and both green.
If BSP LED is solid red replace the
module.
Check if power supply is ok but LEDs
are both off. In this case replace the
module.
Notes
Solution
Check the power supply from the
connector on the side of the module.
Check if LEDs are both green.
Check if the connector on the side is
tightly inserted in the module.
Check if module's address is correct
referring to the wiring diagram.
Check if LED are on and both green.
If BSP LED is solid red replace the
module.
Check if power supply is ok but LEDs
are both off. In this case replace the
module.
Notes
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