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Error codes by brand

Dyness error codes

18 codes documented in Dyness's inverter and battery manuals. Pick yours to see what it means, what you can safely check, and when to call your installer.

WattMate is not affiliated with Dyness. This page summarises Dyness's own published documentation; your installer and Dyness are the authority on your system. WattMate doesn't repair systems or make site visits.

Battery codes

  • E1GFCI Fault (The ground leakage current is high)
  • E10Grid Loss (Not available of public grid power)
  • E12DC Bus High (BUS voltage is over-high)
  • E14Over Temperature (Temperature inside of the product is too high)
  • E16DC Input High (PV or battery voltage is too high)
  • E19ISO Fault (PV isolation protection)
  • E20DC Injection High (High DC injection current)
  • E21Back-Up Over Load (Back-up side is overloaded)
  • E25/26VAC High/Low (Grid voltage is not within permissible range)
  • E27/28FAC High/Low (Grid Frequency is not within permissible range)
  • E31EEPROM Fault (EEPROM R/W fails)
  • E32Comm Fault (Internal communication fails)
  • HTP-CHRGHigh temperature protection during charging
  • HTP-DISHigh temperature protection during discharging
  • LVPLow voltage alarm
  • OC-CHRGOver-current when charging
  • OC-DISOver-current protection when discharging
  • ODPOver-discharged protection

Find the Dyness manual for your model

When to call your installer or the warranty line

Your installer is your first warranty contact. If they've gone, the manufacturer's warranty line still covers the hardware. Don't open the inverter or battery case yourself: work inside it is for a licensed electrician.

If you see smoke, scorch marks or smell burning, switch the system off at the AC and PV isolators and call your installer. If anyone is in danger, call 000.

Dyness warranty phone
1300396377
Dyness warranty email
auservice@dyness-tech.com
  1. Try the free fixes first

    Most faults are an isolator, a WiFi drop or a known error code. Start with the lookup and guides above.

  2. Then call the people who are responsible for it

    Your installer is your first warranty contact. If they've gone, the manufacturer's warranty line still covers the hardware.

    Find the manufacturer's warranty line
  3. If it's near the end of its life, see what replacing it would do

    A free energy audit report sizes a new system for your actual bills and shows what a replacement would do. Your first results need no details; your details only reach installers if you ask for the full report.

    Get your free energy audit report