31Fault

Voltronic inverter error 31

Reverse connection of input and output wires

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 E 5.5KW

InverterFault

What it means

Reverse connection of input and output wires — Fault code 31 shown on the display with the fault icon on: Reverse connection of input and output wires.

Cause: Reverse connection of input and output wires.

How to fix it

  1. Shut down the inverter completely.
  2. Check if grid wires are connected to AC output terminals.
  3. If mis-connected, re- connect it correctly.
  4. And turn on the inverter again.
  5. If error message still remains, please contact your installer.

Source: InfiniSolarE-5.5KW-manual.pdf, p.45

InfiniSolar 2KW/3KW

InverterFault

Also applies to:InfiniSolar 2KWInfiniSolar 3KW

What it means

Reverse connection of input and output wires — Fault code 31 shown on the display with the fault icon on: Reverse connection of input and output wires.

Cause: Reverse connection of input and output wires.

How to fix it

  1. Shut down the inverter completely
  2. Check if grid wires are connected to AC output terminals.

Source: InfiniSolar-2KW3KW-manual.pdf, p.49

ESS510

Energy storage systemFault

What it means

Reverse connection of input and output wires — Fault code 31 shown on the display with the fault icon on: Reverse connection of input and output wires..

Cause: Reverse connection of input and output wires.

How to fix it

  1. Shut down the inverter completely.
  2. Check if grid wires are connected to AC output terminals.
  3. If mis-connected, re-connect it correctly.
  4. And turn on the inverter again.
  5. If error message still remains, please contact your installer.

Source: ESS510-manual.pdf, p.70

Galleon II 6K-10K

upsFault

Also applies to:Galleon II 6KGalleon II 10K

What it means

Can communication fault — Fault code 31 shown on the display; the UPS has detected a fault condition: Can communication fault.

Cause: Can communication fault.

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

Frequently asked questions

What does error 31 mean on a Voltronic inverter?
It depends on the model — 4 devices use code 31. On the InfiniSolar E 5.5KW it means: Reverse connection of input and output wires. The card for each model on this page gives its exact meaning and fix.
Is error 31 a fault or a warning?
31 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 31?
Shut down the inverter completely. Check if grid wires are connected to AC output terminals. The exact steps for each affected model are listed on this page.

Related error 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 ESS510

All ESS510 codes

Other codes on the Galleon II 6K-10K

All Galleon II 6K-10K codes

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