ALARM #31

UnclassifiedStarting

What This Code Means

Error persists after restart; Error LEDs are on (red)

Possible Causes

  • Defective BMS of the batteries
  • Defective contactor used for pre-loading
  • BMS of the batteries is not working properly

Suggested Actions

  1. 1Check that the RJ45 connectors connected between the battery modules are in good condition
  2. 2Check the voltage between the DC bus from the EHR
  3. 3Turn the batteries off and restart the equipment
  4. 4Replace defective modules
  5. 5Refer to the manual to perform a system shutdown (do not turn the batteries off)
  6. 6Check that the batteries are working properly
  7. 7Identify defective elements if error LEDs (red) are on
  8. 8Check that the communication between the BMS of the batteries and the Cerbo GX is correct
  9. 9Check that the RJ45 connectors connected between the battery modules are in good condition and tightly tightened
  10. 10Replace the defective BMS module

ASK RUDY ABOUT THIS FAULT

Get a diagnosis walkthrough for ALARM #31 on your specific Hipower Systems unit — cited to the OEM manual, not a forum guess.

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