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Error codes by brand

Solplanet error codes

28 codes documented in Solplanet'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 Solplanet. This page summarises Solplanet's own published documentation; your installer and Solplanet are the authority on your system. WattMate doesn't repair systems or make site visits.

Inverter codes

  • 2Self-diagnosis fault
  • 6Maximum DC Input Voltage Exceeded
  • 10Grid Loss
  • 32Low Temp
  • 33Abnormal Frequency Change
  • 34Grid Voltage Fault
  • 35GFCI fault
  • 36PV over voltage fault
  • 37Isolation fault
  • 38Earth Fault Alarm
  • 40Over Temperature Fault
  • 41Self-Diagnosis Fault
  • 46Bus over voltage
  • 61DRED Communication Error
  • 65Ground Line Connection Issue
  • E01General fault
  • E33Grid frequency issues
  • E34Grid voltage issues
  • E35Fuse or circuit breaker issue
  • E36Grounding connection issue
  • E37Input voltage too high
  • E38Insulation issue
  • E40Heat sink airflow issue
  • E46Open-circuit voltage too low
  • E48Supply issue
  • E56Restart issue
  • E61DRED communication issue
  • E65Grounding Error

Find the Solplanet 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.

Solplanet service network
Open the manufacturer's service page
  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