855 StarCool Alarm Codes

855 PTI Tset 5
Description PTI 5°C Set Fault
Cause Indication of insufficient performance
Trouble
shooting		 Possible causes:
  • Doors are open.
  • The heaters do not operate correctly.
  • There may not be enough refrigerant in the unit.
  • The cooling capacity is too limited.
Trouble shooting:
  1. Try to correct the error by uploading the latest software version to the controller.
  2. Verify that the doors are closed.
  3. If start temperature was below +5°C, the heaters may be defective. Start the heaters in manual mode and see if the current consumption is higher than 5 A each phase.
  4. The unit may be lacking refrigerant. Check if the small red balls in the sight glass in the receiver (receiver tank) are not at the bottom when the unit is turned off. Search for leaks, repair and charge the unit.
Criteria Set-point +5°C was not reached within the 3 hour limit

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