630 StarCool Alarm Codes And Actions

630 Manual phase dir
Description Manually Selected Phase Direction
Cause Indication of insufficient yield or defective controller
Trouble
shooting		 Possible causes:
  • The user has selected a manual phase direction.
Accompanied alarms:
  • AL 423 should have been active before using manual phase direction has been used.
Trouble shooting:
  1. The quality of the power frequency is so poor that the user must decide phase direction. Apply valid power supply to the unit. Ensure condenser fan is running the right direction if no better power supply is available.
  2. There is a failure in the power wiring for the unit. Check that there are 3 valid phases for the unit.
  3. There is a fault in the phase direction detection circuit. Turn unit off and on again and see if the phase can be detected now. If phases still can’t be detected, replace the power module PCB.
  4. The main controller is defective. Replace main controller.
Criteria User has manually selected phase direction

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