01Fault

Voltronic inverter error 01 (F1)

Fan is locked when inverter is off

Also displayed as F1 on some models.

Fault — the inverter cuts its output and the red LED stays solid until the fault is cleared.

The exact meaning depends on your model:

Axpert MAX II TWIN

InverterFault

Also applies to:Axpert MAX II TWIN 8KWAxpert MAX II TWIN 11KWAxpert MAX II TWIN 12KWAxpert MAX II Duplex 8KWAxpert MAX II Duplex 11KWAxpert MAX II 8KWAxpert MAX II 11KWAxpert MAX 8K TWIN PV11K+33

What it means

Fan is locked when inverter is off

Cause: Fan fault.

How to fix it

Replace the fan.

Source: Axpert-MAXII-8K-TWIN-Off-grid-manual.pdf, p.47 · Axpert-MAXII-8K-TWIN-Off-grid-manual.pdf, p.55 · Axpert-MAXII-11K-TWIN-Off-grid-manual.pdf, p.47 · +47 more official manuals

InfiniSolar V II

InverterFault

Also applies to:InfiniSolar V II 2KWInfiniSolar V II 3KWInfiniSolar V II 5KWInfiniSolar V II 1.5KWInfiniSolar V II WP 2KWInfiniSolar V II WP 3KWInfiniSolar V II WP 5KWInfiniSolar V 1KW+4

What it means

Fan locked — Fault code 01 shown on the display with the fault icon on: Fan locked.

Cause: Fan fault.

How to fix it

Replace the fan.

Source: InfiniSolarVII_2KW-3KW-5KW_manual.pdf, p.26 · InfiniSolarVII_2KW-3KW-5KW_manual.pdf, p.28 · InfiniSolarVII_1.5KW_manual.pdf, p.27 · +5 more official manuals

InfiniSolar V II 6KW (Split Phase)

InverterFault

Also applies to:InfiniSolar V II 2P 6KW

What it means

Fan is locked — Fault code 01 shown on the display with the fault icon on: Fan is locked..

Cause: Fan fault.

How to fix it

Replace the fan.

Source: InfiniSolar-VII-2P-6KW-manual-20201207.pdf, p.30 · InfiniSolar-VII-2P-6KW-manual-20201207.pdf, p.32

InfiniSolar WP LV 12KW Premium

InverterFault

What it means

Bus voltage over — Fault code 01 shown on the display with the fault icon on: Bus voltage over.

Cause: Bus voltage over.

How to fix it

  1. Restart the unit.
  2. If the fault happens again, contact your installer or the repair centre.

Source: InfiniSolar-WP-LV-12KW-Premium-manual.pdf, p.52

InfiniSolar 10KW

InverterFault

Also applies to:InfiniSolar 15KWInfiniSolar Super 4KWInfiniSolar Plus 5KWInfiniSolar TX-PA 30KW

What it means

Bus voltage over — Fault code 01 shown on the display with the fault icon on: Bus voltage over.

Cause: Surge.

How to fix it

  1. Restart the inverter
  2. If the error message still remains, please contact your installer.

Source: InfiniSolar-10KW-manual-20191126.pdf, p.50 · InfiniSolar-15K-manual-20200313.pdf, p.51 · InfiniSolar-Super-4KW-manual.pdf, p.47 · +2 more official manuals

InfiniSolar E 5.5KW

InverterFault

What it means

DC bus voltage exceeds the upper threshold — Fault code 01 shown on the display with the fault icon on: DC bus voltage exceeds the upper threshold.

Cause: DC bus voltage exceeds the upper threshold.

How to fix it

  1. Disconnect AC circuit breaker first.
  2. Then, disconnect DC circuit breaker.
  3. Until LCD screen completely shuts down, turn on DC breaker first.
  4. It will show "No Utility" in LCD screen.
  5. Then, turn on AC breaker.
  6. After 300 seconds, the system will automatically connect to the grid.
  7. If the error message still remains, please contact your installer.
  8. The internal temperature is higher than specified temperature.
  9. Leave inverter to cool down to room temperature.
  10. If the error message still remains, please contact your installer.
  11. Check if the open circuit voltage of PV modules is higher than 500VDC.
  12. If PV open circuit voltage is less than 500VDC and the error message remains, pelase contact your installer.
  13. Turn off the inverter.
  14. Then, restart the inverter.
  15. If the error message still remains, please contact your installer.
  16. The ground voltage is too high.
  17. Please disconnect AC breaker first and then DC breaker.
  18. Check if grounding is connected properly after LCD screen.

Source: InfiniSolarE-5.5KW-manual.pdf, p.43

InfiniSolar 2KW/3KW

InverterFault

Also applies to:InfiniSolar 2KWInfiniSolar 3KW

What it means

DC bus voltage exceeds the upper threshold — Fault code 01 shown on the display with the fault icon on: DC bus voltage exceeds the upper threshold.

Cause: DC bus voltage exceeds the upper threshold.

How to fix it

  1. Disconnect AC circuit breaker first. Then, disconnect DC circuit breaker
  2. Until LCD screen completely shuts down, turn on DC breaker first. It will show "No Utility" in LCD screen. Then, turn on AC breaker. After 300 seconds, the system will automatically connect to the grid
  3. If the error message still remains, please contact your installer.

Source: InfiniSolar-2KW3KW-manual.pdf, p.46

DC Converter 3KW

InverterFault

What it means

Input current is abnormal — Fault code 01 shown on the display with the fault icon on: Input current is abnormal..

Cause: Input current is abnormal.

How to fix it

  1. Restart the converter
  2. If the problem remains, please contact your installer.

Source: DC-converter-3KW-manual.pdf, p.20 · DC-converter-3KW-manual.pdf, p.21

ESS510

Energy storage systemFault

What it means

DC bus voltage exceeds the upper threshold — Fault code 01 shown on the display with the fault icon on: DC bus voltage exceeds the upper threshold..

Cause: DC bus voltage exceeds the upper threshold.

How to fix it

  1. Disconnect AC circuit breaker first.
  2. Then, disconnect DC circuit breaker.
  3. Until LCD screen completely shuts down, turn on DC breaker first.
  4. It will show "No Utility" in LCD screen.
  5. Then, turn on AC breaker.
  6. After 300 seconds, the system will automatically connect to the grid.
  7. If the error message still remains, please contact your installer.

Source: ESS510-manual.pdf, p.68

Galleon II 6K-10K

upsFault

Also applies to:Galleon II 6KGalleon II 10KGiant Elite 1P/1P 6K-10KWinner Pro 6KVAWinner Pro 10KVA

What it means

Bus start failure — Fault code 01 shown on the display; the UPS has detected a fault condition: Bus start failure.

Cause: Bus start failure.

How to fix it

  1. Restart the unit.
  2. If the fault happens again, contact your installer or the repair centre.

Source: GalleonII-6-10K-Tower-RT-manual.pdf, p.29 · Giant-Elite-1P-1P_manual.pdf, p.26 · WinnerPro-6-10KVA_manual.pdf, p.23

Galleon III 1K-3K

upsFault

Also applies to:Galleon III 1KGalleon III 2KGalleon III 3KWinner Pro 1KVA-3KVAWinner Pro+ 1KWinner Pro+ 2KWinner Pro+ 3KOtima II 800VA-3KVA+1

What it means

Bus start fail — Fault code 01 shown on the display; the UPS has detected a fault condition: Bus start fail.

Cause: Bus start fail.

How to fix it

  1. Restart the unit.
  2. If the fault happens again, contact your installer or the repair centre.

Source: Galleon-III-Tower-Rack-1-3K-manual.pdf, p.31 · Winner-Pro_manual.pdf, p.15 · WinnerProPlus-1-3K-Tower-Rack_manual.pdf, p.24 · +2 more official manuals

Galleon X9 6K-10K RT

upsFault

Also applies to:Galleon X9 6K RTGalleon X9 10K RT

What it means

Bus Start Fail — Fault code 01 shown on the display; the UPS has detected a fault condition: Bus Start Fail.

Cause: The internal converter failed, so the DC bus voltage could not be boosted correctly.

How to fix it

Contact the dealer to repair.

Source: Galleon-X9-6-10K-RT_manual.pdf, p.28

Giant Elite 3P/3P

upsFault

Also applies to:Giant Elite 3P/3P 10K-40KVA

What it means

Firmware incompatibility — Fault code 01 shown on the display; the UPS has detected a fault condition: Firmware incompatibility.

Cause: Firmware incompatibility.

How to fix it

  1. Restart the unit.
  2. If the fault happens again, contact your installer or the repair centre.

Source: Giant-Elite-3P3P-manual.pdf, p.41

SCC-MPPT Solar Charge Controller

Charge controllerFault

Also applies to:SCC-MPPT 300WSCC-MPPT 600WSCC-MPPT 850W

What it means

Battery wires are not connected well, battery defect, or charge controller defect — Fault code F1 shown on the display with the fault icon on: Battery wires are not connected well, battery defect, or charge controller defect..

Cause: Battery wires are not connected well. Battery defect. Charge controller defect.

How to fix it

  1. Check if battery wires are properly connected.
  2. Replace battery.
  3. If the charge controller is defective, replace the unit.

Source: SCC-MPPT_manual.pdf, p.6

Frequently asked questions

What does error 01 mean on a Voltronic inverter?
It depends on the model — 49 devices use code 01. On the Axpert MAX II TWIN it means: Fan is locked when inverter is off. The card for each model on this page gives its exact meaning and fix.
Is error 01 a fault or a warning?
01 is a fault code: the inverter cuts its output and the red LED stays solid until it is cleared.
How do I clear or fix error 01?
Replace the fan. The exact steps for each affected model are listed on this page.

Related error codes

Other codes on the Axpert MAX II TWIN

All Axpert MAX II TWIN codes All Axpert MAX II Duplex codes All Axpert MAX II codes All Axpert MAX TWIN codes All Axpert MAX E TWIN codes All Axpert MAX E Duplex codes All Axpert MAX codes All Axpert KING II TWIN codes All Axpert KING codes All Axpert MKS IV TWIN codes All Axpert MKS IV codes All Axpert MKS III TWIN codes All Axpert MKS II codes All Axpert VM II codes All Axpert VM II (PF1) codes All Axpert VM III codes All Axpert VM IV TWIN (VM4 TWIN) codes All Axpert KS codes All Axpert V (PF1) codes All Axpert WP TWIN codes All Axpert 3KP/5KP 24V codes All ESS-A510 codes All Galleon One 5KL 48V codes

Other codes on the InfiniSolar V II

All InfiniSolar V II codes All InfiniSolar V II 1.5KW codes All InfiniSolar V II WP codes All InfiniSolar V codes

Other codes on the InfiniSolar V II 6KW (Split Phase)

All InfiniSolar V II 6KW (Split Phase) codes

Other codes on the InfiniSolar WP LV 12KW Premium

All InfiniSolar WP LV 12KW Premium codes

Other codes on the InfiniSolar 10KW

All InfiniSolar 10KW codes All InfiniSolar 15KW codes All InfiniSolar Super 4KW codes All InfiniSolar Plus 5KW codes All InfiniSolar TX-PA 30KW codes

Other codes on the InfiniSolar E 5.5KW

All InfiniSolar E 5.5KW codes

Compiled from official Voltronic user manuals. Always consult your device manual and a qualified technician before performing repairs.