What does error 52 mean on a Voltronic inverter?

It depends on the model — 30 devices use code 52. On the Axpert MAX II TWIN it means: Bus voltage is too low. The card for each model on this page gives its exact meaning and fix.

How do I clear or fix error 52?

If the battery is connected well, please return to repair center. The exact steps for each affected model are listed on this page.

Voltronic inverter error 52

Bus voltage is too low

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 3.6KW+29

What it means

Bus voltage is too low

Cause: Bus voltage is too low.

How to fix it

If the battery is connected well, please return to repair center.

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 · +35 more official manuals

Axpert MAX TWIN

InverterFault

Also applies to:Axpert MAX 8K TWIN PV11KAxpert MAX E TWIN 11KWAxpert MAX E 11K DuplexAxpert MKS III TWIN 6KWAxpert WP TWIN 8KWESS-A510

What it means

Bus voltage is too low — Fault code 52 shown on the display with the fault icon on: Bus voltage is too low.

Cause: Bus voltage is too low.

How to fix it

Restart the unit, if the error happens again, please return to repair center.

Source: Axpert-MAX-8K-TWIN-Off-grid-manual-20220121.pdf, p.39 · Axpert-MAX-8K-TWIN-Off-grid-manual-20220121.pdf, p.46 · Axpert-MAX-E-TWIN-11K-Off-grid-manual-20220121.pdf, p.40 · +9 more official manuals

Axpert VM II

InverterFault

Also applies to:Axpert VM II 1.2KVAAxpert VM II 2.5KVAAxpert VM II Plus 3KAxpert VM II 3KVA PF1Axpert VM II 5KVA PF1Axpert VM III 1.5KWAxpert VM III 3KWAxpert VM III 5KW+2

What it means

Bus voltage is too low — Fault code 52 shown on the display with the fault icon on: Bus voltage is too low.

Cause: Bus voltage is too low.

How to fix it

Reduce the number of PV modules in series.

Source: Axpert-VM-II-1.2KVA-2.5KVA_Plus-3K_manual.pdf, p.29 · Axpert-VM-II-1.2KVA-2.5KVA_Plus-3K_manual.pdf, p.33 · Axpert-VM-II-PF1-USB-dry-contact-100A_manual.pdf, p.28 · +5 more official manuals

InfiniSolar V II 1.5KW

InverterFault

What it means

Bus voltage is too low — Fault code 52 shown on the display with the fault icon on: Bus voltage is too low.

Cause: Bus voltage is too low.

How to fix it

Reduce PV serial amount.

Source: InfiniSolarVII_1.5KW_manual.pdf, p.27 · InfiniSolarVII_1.5KW_manual.pdf, p.29

InfiniSolar 15KW

InverterFault

What it means

Solar1 over temperature — Fault code 52 shown on the display with the fault icon on: Solar1 over temperature.

Cause: Internal temperature is too high.

How to fix it

Check the ambient temperature and fans
If the error message still remains, please contact your installer.

Source: InfiniSolar-15K-manual-20200313.pdf, p.52

InfiniSolar TX-PA 30KW

InverterFault

What it means

Bat Curr Avg CT — Fault code 52 shown on the display with the fault icon on: Bat Curr Avg CT.

Cause: Internal components failed.

How to fix it

Please contact your installer.

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

Frequently asked questions

What does error 52 mean on a Voltronic inverter?: It depends on the model — 30 devices use code 52. On the Axpert MAX II TWIN it means: Bus voltage is too low. The card for each model on this page gives its exact meaning and fix.
Is error 52 a fault or a warning?: 52 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 52?: If the battery is connected well, please return to repair center. 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.

Axpert MAX II TWIN

What it means

How to fix it

Axpert MAX TWIN

What it means

How to fix it

Axpert VM II

What it means

How to fix it

InfiniSolar V II 1.5KW

What it means

How to fix it

InfiniSolar 15KW

What it means

How to fix it

InfiniSolar TX-PA 30KW

What it means

How to fix it

Frequently asked questions

Related error codes

Other codes on the Axpert MAX II TWIN

Other codes on the Axpert MAX TWIN

Other codes on the Axpert VM II

Other codes on the InfiniSolar V II 1.5KW

Other codes on the InfiniSolar 15KW

Other codes on the InfiniSolar TX-PA 30KW