424 StarCool Alarm Codes And Actions

424  Power frequency
Description Phase frequency error
Cause Indication of error on StarCool unit power supply
Trouble
shooting		 Possible causes:

  • The unit is supplied with an unstable voltage.
  • The power frequency is out of specified range.


Trouble shooting:


  1. Try to correct the error by uploading the latest software version to the controller.
  2. Check if voltage on all 3 phases is within specified range.
  3. Verify that all 3 phases are applied to the unit and for example not just 2 phases.
  4. Verify that power frequency is within specified range.
  5. Apply correct voltage to the unit
Criteria Value out of limits. Power frequency must be between 47.5 Hz and 62.5 Hz
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