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Error codes by brand

Tbb Power error codes

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

Inverter codes

  • 101DC bus is over voltage
  • 102DC bus is under voltage
  • 103Hardware protection to prevent DC bus over voltage
  • 104Auxiliary power supply is abnormal
  • 105Heat sink's temperature is too high
  • 106Transformer's temperature is too high
  • 107Sampling is abnormal
  • 108ROM is abnormal
  • 109Output short circuit
  • 110Output over load
  • 111Cooling system is abnormal
  • 112Battery is severely under voltage
  • 114Instantaneous over current
  • 115Emergency stop
  • 116Relay is abnormal
  • CoolSys_ErrCooling system is abnormal
  • EEPROM_FailROM is abnormal
  • EPOEmergency stop
  • Instant_OC_SoftInstantaneous over current
  • Output_OverLoadOutput over load
  • Output_ShortCutOutput short circuit
  • PSU_FaultAuxiliary power supply is abnormal
  • Rly_ErrRelay is abnormal
  • Sam_HD_FaultSampling is abnormal
  • T_HS_OTHeat sink's temperature is too high
  • T_TX_OTTransformer's temperature is too high
  • U_BAT_Low_DepBattery is severe under voltage
  • U_Bus_HW_ProHardware protection against DC bus over voltage
  • U_Bus_LVDC bus is under voltage
  • U_Bus_OVDC bus is over voltage

Find the Tbb Power 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.

We don't have a warranty line on file for Tbb Power yet. See the manufacturer contacts we do hold, or ask your installer.

  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