05Fault

Voltronic inverter error 05

Output short circuited

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+24

What it means

Output short circuited

Cause: Output short circuited.

How to fix it

Check if wiring is connected well and remove abnormal load.

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 · +33 more official manuals

Axpert KING II TWIN

InverterFault

Also applies to:Axpert KING II TWIN 6KWAxpert KING II TWIN 6.2KWAxpert KING 3KWAxpert KING 5KWAxpert MKS II 5KVAAxpert VM II 1.2KVAAxpert VM II 2.5KVAAxpert VM II Plus 3K+12

What it means

Output short circuited or over temperature is detected by internal converter components

Cause: Output short circuited.

How to fix it

Check if wiring is connected well and remove abnormal load.

Source: Axpert-KING-II-TWIN-manual-20220915.pdf, p.36 · Axpert-KING-II-TWIN-manual-20220915.pdf, p.43 · Axpert-KING-manual.pdf, p.31 · +17 more official manuals

Axpert MKS III TWIN

InverterFault

Also applies to:Axpert MKS III TWIN 6KW

What it means

Output short circuited or over temperature is detected by internal converter components — Fault code 05 shown on the display with the fault icon on: Output short circuited or over temperature is detected by internal converter components..

Cause: Output is short circuited.

How to fix it

Check if wiring is connected well and remove abnormal load.

Source: Axpert-MKS-III-TWIN-6K-manual.pdf, p.35 · Axpert-MKS-III-TWIN-6K-manual.pdf, p.41

InfiniSolar V II 6KW (Split Phase)

InverterFault

Also applies to:InfiniSolar V II 2P 6KW

What it means

Output is short circuited — Fault code 05 shown on the display with the fault icon on: Output is short circuited..

Cause: Output short circuited.

How to fix it

Check if wiring is connected well and remove abnormal load.

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

INV over current — Fault code 05 shown on the display with the fault icon on: INV over current.

Cause: INV over current.

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 5KW

What it means

INV over current — Fault code 05 shown on the display with the fault icon on: INV over current.

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 · +1 more official manuals

InfiniSolar E 5.5KW

InverterFault

What it means

An Inverter overcurrent event is detected — Fault code 05 shown on the display with the fault icon on: An Inverter overcurrent event is detected.

Cause: An Inverter overcurrent event is detected.

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

An Inverter overcurrent event is detected — Fault code 05 shown on the display with the fault icon on: An Inverter overcurrent event is detected.

Cause: An Inverter overcurrent event is detected.

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

InfiniSolar TX-PA 30KW

InverterFault

What it means

INV Curr over — Fault code 05 shown on the display with the fault icon on: INV Curr over.

Cause: Surge.

How to fix it

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

Source: InfiniSolar-TX-PA_manual.pdf, p.50

DC Converter 3KW

InverterFault

What it means

Average battery current is abnormal — Fault code 05 shown on the display with the fault icon on: Average battery current is abnormal..

Cause: Average battery 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

An inverter overcurrent event is detected — Fault code 05 shown on the display with the fault icon on: An inverter overcurrent event is detected..

Cause: An inverter overcurrent event is detected.

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

Giant Elite 3P/3P

upsFault

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

What it means

BUS voltage is too high — Fault code 05 shown on the display; the UPS has detected a fault condition: BUS voltage is too high.

Cause: BUS voltage is too high.

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

Frequently asked questions

What does error 05 mean on a Voltronic inverter?
It depends on the model — 39 devices use code 05. On the Axpert MAX II TWIN it means: Output short circuited. The card for each model on this page gives its exact meaning and fix.
Is error 05 a fault or a warning?
05 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 05?
Check if wiring is connected well and remove abnormal load. 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 MKS IV TWIN codes All Axpert MKS IV codes All Axpert VM IV TWIN (VM4 TWIN) codes All Axpert WP TWIN codes All InfiniSolar V II codes All InfiniSolar V II 1.5KW codes All InfiniSolar V II WP codes All InfiniSolar V codes All ESS-A510 codes

Other codes on the Axpert KING II TWIN

All Axpert KING II TWIN codes All Axpert KING codes All Axpert MKS II codes All Axpert VM II codes All Axpert VM II (PF1) codes All Axpert VM III codes All Axpert KS codes All Axpert V (PF1) codes All Axpert 3KP/5KP 24V codes All Galleon One 5KL 48V codes

Other codes on the Axpert MKS III TWIN

All Axpert MKS III TWIN 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

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