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Error codes by brand

SMA error codes

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

Battery codes

  • 9307Communication fault between the battery modules
  • 9312Undervoltage battery system
  • 9313Overtemperature battery system
  • 9314Undertemperature battery system
  • 9315Battery imbalancing fault
  • 9351Incorrect switch position for the battery disconnection point
  • 9392Overcurrent charge battery system
  • 9393Overcurrent discharge battery system

Inverter codes

  • 101Grid incident - Voltage too high.
  • 102Grid incident - Voltage too high.
  • 103Grid incident - Voltage too high.
  • 105Grid incident - Voltage too high.
  • 301Voltage too high.
  • 302Temperature AC voltage - Reduced power.
  • 401Grid incident - Disconnected.
  • 404Grid incident - Disconnected.

Find the SMA 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.

SMA warranty phone
1800 762 287
SMA 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
501
Grid frequency not permitted.
  • 507Too high grid frequency - Reduced power.
  • 601High proportion of DC in grid current
  • 1001L/N swapped - Installation fault.
  • 1101Installation fault - Check connection.
  • 3601High leakage current detected
  • 6001Excess direct current detected.
  • 6501Overtemperature - self-diagnosis
  • 9307Defective battery system
  • E001Earth fault detected
  • E002Communication failure
  • E003Over temperature warning