0X1B

UnclassifiedCooling

What This Code Means

Device is not communicating on SENSbus; Battery is beginning to discharge; DC output voltage is below Batt Discharge Voltage alarm setpoint; DC output voltage is below Batt End Discharge Voltage alarm setpoint; Ground fault current to the negative output terminal is above the Ground Fault Trip sensitivity setpoint; Charger has shut itself off; Charger detected an issue; Battery voltage is below the Startup Voltage setpoint; Unit output voltage is disabled; Problem with one or more of the module fans; Battery has failed the most recent battery check; Output current is more than rated current; Charger reading battery temperature and compensating voltage; Charger is set to charge an Ultra Capacitor

Possible Causes

  • SENS Bus Inactive
  • Battery On Discharge
  • Battery End Discharge
  • Ground Fault Negative
  • DC Negative open (loss of high current negative connection in parallel chargers)
  • DC Below Startup Voltage
  • Fan Fail
  • Battery Check
  • High Charger Current
  • Using Battery Temperature
  • UltraCap Mode Active

Suggested Actions

  1. 1Check SENSbus communication
  2. 2Check battery terminal connections
  3. 3Forced startup feature overrides

ASK RUDY ABOUT THIS FAULT

Get a diagnosis walkthrough for 0X1B on your specific Stored Energy Systems LLC unit — cited to the OEM manual, not a forum guess.

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