Fault code 01 shown on the display with the fault icon on: Bus voltage over.
CauseSurge.
Recommended fix1. Restart the inverter. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 50
Voltronic InfiniSolar TX-PA 30KW Error Codes: Causes & Fixes (76 codes)
This is the complete fault table for the Voltronic InfiniSolar TX-PA 30KW Inverter — all 76 codes from the official manual on one page. On Voltronic units, a fault code means the unit has cut its output and the red LED stays solid; a warning flashes the red LED while the unit keeps running.
Last checked against the official manuals on July 27, 2026.
How to read the severity labels
- Fault(55)— output stops · red LED solid
- Warning(21)— unit keeps running · red LED flashing
Fault codes (55)output stops · red LED solid
Fault code 02 shown on the display with the fault icon on: BUS voltage under.
CausePV or battery disconnect suddenly.
Recommended fix1. Restart the inverter 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 50
Fault code 03 shown on the display with the fault icon on: BUS soft start time out.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 50
Fault code 04 shown on the display with the fault icon on: INV soft start time out.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 50
Fault code 05 shown on the display with the fault icon on: INV Curr over.
CauseSurge.
Recommended fix1. Restart the inverter. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 50
Fault code 06 shown on the display with the fault icon on: R SCR Close Fault.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 50
Fault code 07 shown on the display with the fault icon on: S SCR Close Fault.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 50
Fault code 08 shown on the display with the fault icon on: T SCR Close Fault.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 50
Fault code 09 shown on the display with the fault icon on: Solar Power abnor.
CauseSolar input voltage is too high.
Recommended fix1. Please check if solar input voltage is higher than 950V. 2. Please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 50
Fault code 11 shown on the display with the fault icon on: Solar IP Curr over.
CauseSurge.
Recommended fix1. Restart the inverter. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 50
Fault code 16 shown on the display with the fault icon on: GFCI Senser fault.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 50
Fault code 17 shown on the display with the fault icon on: Mcu&Dsp com loss.
CauseFirmware version not compatible.
Recommended fixplease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 50
Fault code 18 shown on the display with the fault icon on: Mcu&Dsp ver error.
CauseFirmware version not compatible.
Recommended fixplease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 50
Fault code 22 shown on the display with the fault icon on: Bat volt over.
CauseBattery voltage exceeds the limit.
Recommended fix1. Check the battery voltage. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 50
Fault code 23 shown on the display with the fault icon on: Over load.
CauseThe inverter is loaded with more than 110% load and time is up.
Recommended fixReduced the connected load by switching off some equipment.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 24 shown on the display with the fault icon on: R SCR Open Fault.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 25 shown on the display with the fault icon on: S SCR Open Fault.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 26 shown on the display with the fault icon on: T SCR Open Fault.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 32 shown on the display with the fault icon on: DCDC curr over.
CauseLoad fluctuates.
Recommended fix1. Restart the inverter. 2. If the error message still.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 33 shown on the display with the fault icon on: Inv Volt Low.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 34 shown on the display with the fault icon on: Inv Volt High.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 36 shown on the display with the fault icon on: OP Circuit Fault.
CauseGrid connects to output terminal.
Recommended fixDon't connect the grid to the output terminal.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 40 shown on the display with the fault icon on: Inv R Short.
CauseOutput short circuited.
Recommended fix1. Check if wiring is connected well and remove abnormal load. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 41 shown on the display with the fault icon on: Inv S Short.
CauseOutput short circuited.
Recommended fix1. Check if wiring is connected well and remove abnormal load. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 42 shown on the display with the fault icon on: Inv T Short.
CauseOutput short circuited.
Recommended fix1. Check if wiring is connected well and remove abnormal load. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 43 shown on the display with the fault icon on: Inv R/S short.
CauseOutput short circuited.
Recommended fix1. Check if wiring is connected well and remove abnormal load. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 44 shown on the display with the fault icon on: Inv S/T short.
CauseOutput short circuited.
Recommended fix1. Check if wiring is connected well and remove abnormal load. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 45 shown on the display with the fault icon on: Inv T/R short.
CauseOutput short circuited.
Recommended fix1. Check if wiring is connected well and remove abnormal load. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 46 shown on the display with the fault icon on: Trans Temp Over.
CauseThe temperature is too high inside.
Recommended fix1. Check the ambient temperature and fans. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 47 shown on the display with the fault icon on: DCDC Temp Over.
CauseThe temperature is too high inside.
Recommended fix1. Check the ambient temperature and fans. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 48 shown on the display with the fault icon on: Inv Temp Over.
CauseThe temperature is too high inside.
Recommended fix1. Check the ambient temperature and fans. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 49 shown on the display with the fault icon on: Inv1 Temp Over.
CauseThe temperature is too high inside.
Recommended fix1. Check the ambient temperature and fans. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 50 shown on the display with the fault icon on: OP SCR Temp Over.
CauseThe temperature is too high inside.
Recommended fix1. Check the ambient temperature and fans. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 51 shown on the display with the fault icon on: Bat SCR Temp Over.
CauseThe temperature is too high inside.
Recommended fix1. Check the ambient temperature and fans. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 52 shown on the display with the fault icon on: Bat Curr Avg CT.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 53 shown on the display with the fault icon on: Bat Curr CT Fault.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 54 shown on the display with the fault icon on: R INV Curr CT.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 55 shown on the display with the fault icon on: S INV Curr CT.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 56 shown on the display with the fault icon on: T INV Curr CT.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 57 shown on the display with the fault icon on: R OP Volt CT.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 58 shown on the display with the fault icon on: S OP Volt CT.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 59 shown on the display with the fault icon on: T OP Volt CT.
CauseInternal components failed.
Recommended fixPlease contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 61 shown on the display with the fault icon on: R Inv Cur FW Over.
CauseSurge.
Recommended fix1. Restart the inverter. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 62 shown on the display with the fault icon on: S Inv Cur FW Over.
CauseSurge.
Recommended fix1. Restart the inverter. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 51
Fault code 63 shown on the display with the fault icon on: T Inv Cur FW Over.
CauseSurge.
Recommended fix1. Restart the inverter. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 52
Fault code 64 shown on the display with the fault icon on: R Inv Cur HW Over.
CauseSurge.
Recommended fix1. Restart the inverter. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 52
Fault code 65 shown on the display with the fault icon on: S Inv Cur HW Over.
CauseSurge.
Recommended fix1. Restart the inverter. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 52
Fault code 66 shown on the display with the fault icon on: T Inv Cur HW Over.
CauseSurge.
Recommended fix1. Restart the inverter. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 52
Fault code 67 shown on the display with the fault icon on: DCDC Buck Fault.
CauseLoad fluctuates.
Recommended fix1. Restart the inverter. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 52
Fault code 68 shown on the display with the fault icon on: DCDC Boost Fault.
CauseLoad fluctuates.
Recommended fix1. Restart the inverter. 2. If the error message still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 52
Fault code 71 shown on the display with the fault icon on: Para Version Diff.
CausePara Version Diff.
Recommended fix1.Update all inverter firmware to the same version. 2.Check the version of each inverter via LCD setting and make sure the CPU versions are same. If not, please contact your instraller to provide the firmware to update. 3.After updating, if the problem still remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 52
Fault code 72 shown on the display with the fault icon on: OP Curr Cir Fault.
CauseOP Curr Cir Fault.
Recommended fix1.Check if sharing cables are connected well and restart the inverter. 2.If the problem remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 52
Fault code 80 shown on the display with the fault icon on: Can Comm Fail.
CauseCan Comm Fail.
Recommended fix1.Check if communication cables are connected well and restart the inverter. 2.If the problem remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 52
Fault code 81 shown on the display with the fault icon on: Para HOST Loss.
CausePara HOST Loss.
Recommended fix1.Check if communication cables are connected well and restart the inverter. 2.If the problem remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 52
Fault code 82 shown on the display with the fault icon on: Para SYN Loss.
CausePara SYN Loss.
Recommended fix1.Check if communication cables are connected well and restart the inverter. 2.If the problem remains, please contact your installer.
Source:InfiniSolar-TX-PA_manual.pdf· page 52
Warning codes (21)unit keeps running · red LED flashing
Warning code 01 flashing on the display: BatOpen.
CauseBattery is unconnected or too low.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 02 flashing on the display: LineHLoss.
CauseGrid voltage is too high.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 03 flashing on the display: LineLLoss.
CauseGrid voltage is too low.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 04 flashing on the display: LineFreqHLoss.
CauseGrid frequency is too high.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 05 flashing on the display: LineFreqLLoss.
CauseGrid frequency is too low.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 06 flashing on the display: LineLTLLoss.
CauseGrid voltage is higher than 253V.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 07 flashing on the display: GroundLoss.
CauseGround wire is not detected.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 08 flashing on the display: LineislandDetect.
CauseIsland operation is detected.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 09 flashing on the display: LineWaveLoss.
CauseThe waveform of grid is not suitable for inverter.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 10 flashing on the display: LinePhaseLoss.
CauseThe Phase sequence of grid is not suitable for inverter.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 11 flashing on the display: EPODetect.
CauseEPO is open.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 12 flashing on the display: Overload.
CauseLoad exceeds rating value.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 13 flashing on the display: DCDCOverTemp.
CauseThe temperature is too high inside.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 14 flashing on the display: BatLow.
CauseBattery discharges to low alarm point.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 15 flashing on the display: BatUnder.
CauseBattery discharges to shutdown point.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 16 flashing on the display: BatWeek.
CauseBattery stops discharging when the grid is OK.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 17 flashing on the display: SolarLoss.
CausePV voltage is too low.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 18 flashing on the display: Inv0TempOver.
CauseThe temperature is too high inside.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 19 flashing on the display: OPSCRTempOver.
CauseThe temperature is too high inside.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 20 flashing on the display: Inv1TempOver.
CauseThe temperature is too high inside.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Warning code 21 flashing on the display: BatSCRTempOver.
CauseThe temperature is too high inside.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:InfiniSolar-TX-PA_manual.pdf· page 49
Still seeing a code on your InfiniSolar TX-PA 30KW?
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Common questions about InfiniSolar TX-PA 30KW error codes
- What is the difference between a fault and a warning on the InfiniSolar TX-PA 30KW?
- A fault cuts the unit's output and the red LED stays solid — this page lists 55 of them for the InfiniSolar TX-PA 30KW. A warning only flashes the red LED and the unit keeps running; there are 21 warning codes here. Resolve the cause of a fault before restarting; warnings can usually be cleared while the unit runs.
- Does this page apply to other Voltronic models?
- No — this table was transcribed specifically from the InfiniSolar TX-PA 30KW manual. Other Voltronic devices have their own pages; start from the error-code hub to find the one matching the model number on your unit's label.
- Where do these codes come from?
- Every entry was transcribed from InfiniSolar-TX-PA_manual.pdf — Voltronic's official documentation. Each row cites its source manual (and page where printed), so you can verify the wording before acting on it.
Compiled from official Voltronic user manuals. Always consult your device manual and a qualified technician before performing repairs.