26Fault

Voltronic inverter error 26

INV short

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

The exact meaning depends on your model:

InfiniSolar 10KW

InverterFault

Also applies to:InfiniSolar 15KWInfiniSolar Super 4KWInfiniSolar Plus 5KW

What it means

INV short — Fault code 26 shown on the display with the fault icon on: INV short.

Cause: Output short circuited.

How to fix it

Check if wiring is connected well and remove abnormal load.

Source: InfiniSolar-10KW-manual-20191126.pdf, p.51 · InfiniSolar-15K-manual-20200313.pdf, p.52 · InfiniSolar-Super-4KW-manual.pdf, p.48 · +1 more official manuals

InfiniSolar E 5.5KW

InverterFault

What it means

Short circuited on inverter output — Fault code 26 shown on the display with the fault icon on: Short circuited on inverter output.

Cause: Short circuited on inverter output.

How to fix it

  1. Check if the impedance between positive and negative poles to the ground is greater than 1MΩ.
  2. If the impedance is lower than 1MΩ, please contact your installer.
  3. Please disconnect AC breaker first and then disconnect DC breaker.
  4. After LCD screen is completely off, turn on DC breaker.
  5. Until it shows "No Utility" in LCD display, turn on AC breaker.
  6. After 300 seconds, the system will automatically connect to the grid.
  7. If error message remains, please contact your installer.
  8. Check if the connection between battery and inverter is good.
  9. Make sure battery condition is ok.
  10. Then, restart the inverter.
  11. If error message remains, please contact your installer.
  12. Remove exessive loads.
  13. Be sure the total power consumption of the connected loads are less than that of the maximum which this inverter can support.
  14. Then, restart the inverter.
  15. Check if battery cable is connected firmly.
  16. If error message remains, please contact your installer.
  17. Remove exessive loads.
  18. Then, restart the inverter.
  19. Turn off the inverter.
  20. Disconnect AC circuit breaker first.
  21. Then, disconnect DC circuit breaker and then disconnect the loads.
  22. Please check if load circuit is ok.
  23. After removing the error, turn on the PV DC.

Source: InfiniSolarE-5.5KW-manual.pdf, p.44

InfiniSolar 2KW/3KW

InverterFault

Also applies to:InfiniSolar 2KWInfiniSolar 3KW

What it means

Short circuited on inverter output — Fault code 26 shown on the display with the fault icon on: Short circuited on inverter output.

Cause: Short circuited on inverter output.

How to fix it

  1. Turn off the inverter
  2. Disconnect AC circuit breaker first. Then, disconnect DC circuit breaker and then disconnect the loads
  3. Please check if load circuit is ok. After removing the.

Source: InfiniSolar-2KW3KW-manual.pdf, p.48

InfiniSolar TX-PA 30KW

InverterFault

What it means

T SCR Open Fault — Fault code 26 shown on the display with the fault icon on: T SCR Open Fault.

Cause: Internal components failed.

How to fix it

Please contact your installer.

Source: InfiniSolar-TX-PA_manual.pdf, p.51

ESS510

Energy storage systemFault

What it means

Short circuited on inverter output — Fault code 26 shown on the display with the fault icon on: Short circuited on inverter output..

Cause: Short circuited on inverter output.

How to fix it

  1. Turn off the inverter.
  2. Disconnect AC circuit breaker first.
  3. Then, disconnect DC circuit breaker and then disconnect the loads.
  4. Please check if load circuit is ok.
  5. After removing the error, turn on the PV DC breaker and battery breaker.
  6. Turn on the inverter.
  7. If error message remains, please contact your installer.

Source: ESS510-manual.pdf, p.70

Frequently asked questions

What does error 26 mean on a Voltronic inverter?
It depends on the model — 8 devices use code 26. On the InfiniSolar 10KW it means: INV short. The card for each model on this page gives its exact meaning and fix.
Is error 26 a fault or a warning?
26 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 26?
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 InfiniSolar 10KW

All InfiniSolar 10KW codes All InfiniSolar 15KW codes All InfiniSolar Super 4KW codes All InfiniSolar Plus 5KW codes

Other codes on the InfiniSolar E 5.5KW

All InfiniSolar E 5.5KW codes

Other codes on the InfiniSolar 2KW/3KW

All InfiniSolar 2KW/3KW codes

Other codes on the InfiniSolar TX-PA 30KW

All InfiniSolar TX-PA 30KW codes

Other codes on the ESS510

All ESS510 codes

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