821 StarCool Alarm Codes

821 Hevap current OFF
Description Evaporator Heater Off Current Fault
Cause Indication of defective heater contactor or defective contactor driver circuitry
Trouble
shooting		 Possible causes:
  • Defective heater contactor.
  • Defective contactor driver circuit.
Trouble shooting:
  1. Try to correct the error by uploading the latest software version to the controller.
  2. Check the heater contactor for defects. Replace the contactor.
  3. Check that the heater power cable are mounted correctly
Criteria Evaporator heater has exceeded off current limit

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