71Fault

Voltronic inverter error 71

Firmware version inconsistent

Faultthe 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+22

What it means

Firmware version inconsistent

Cause: Firmware version inconsistent.

How to fix it

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

Source: Axpert-MAXII-8K-TWIN-Off-grid-manual.pdf, p.64 · Axpert-MAXII-11K-TWIN-Off-grid-manual.pdf, p.64 · Axpert-MAXII-8K-Duplex-Off-grid-manual.pdf, p.61 · +16 more official manuals

What it means

Para Version DiffFault code 71 shown on the display with the fault icon on: Para Version Diff.

Cause: Para Version Diff.

How to fix it

  1. 1.Update all inverter firmware to the same version.
  2. 2.Check the version of each inverter via LCD setting and make sure the CPU versions are same.
  3. If not, please contact your instraller to provide the firmware to update.
  4. 3.After updating, if the problem still remains, please contact your installer.

Source: InfiniSolar-TX-PA_manual.pdf, p.52

Frequently asked questions

What does error 71 mean on a Voltronic inverter?
It depends on the model — 18 devices use code 71. On the Axpert MAX II TWIN it means: Firmware version inconsistent. The card for each model on this page gives its exact meaning and fix.
Is error 71 a fault or a warning?
71 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 71?
Restart the unit. If the fault happens again, contact your installer or the repair centre. The exact steps for each affected model are listed on this page.

Related error codes

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