W07Warning

Voltronic inverter error W07

Overload

Warning — the red LED flashes and the inverter keeps running. Deal with it before it escalates.

The exact meaning depends on your model:

Axpert MAX II TWIN

InverterWarning

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+34

What it means

Overload

Cause: Overload.

How to fix it

Reduce the connected load by switching off some equipment.

Source: Axpert-MAXII-8K-TWIN-Off-grid-manual.pdf, p.48 · Axpert-MAXII-11K-TWIN-Off-grid-manual.pdf, p.48 · Axpert-MAXII-8K-Duplex-Off-grid-manual.pdf, p.45 · +23 more official manuals

InfiniSolar V II

InverterWarning

Also applies to:InfiniSolar V II 2KWInfiniSolar V II 3KWInfiniSolar V II 5KWInfiniSolar V II 1.5KWInfiniSolar V II WP 2KWInfiniSolar V II WP 3KWInfiniSolar V II WP 5KWInfiniSolar V 1KW+4

What it means

Overload — Warning code 07 flashing on the display: Overload.

Cause: Overload.

How to fix it

  1. The unit keeps operating.
  2. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.

Source: InfiniSolarVII_2KW-3KW-5KW_manual.pdf, p.25 · InfiniSolarVII_1.5KW_manual.pdf, p.26 · InfiniSolar-VII-WP-2KW-3KW-5KW-manual-20201127.pdf, p.28 · +1 more official manuals

InfiniSolar WP LV 12KW Premium

InverterWarning

Also applies to:InfiniSolar 10KWInfiniSolar 15KWInfiniSolar Super 4KWInfiniSolar Plus 5KW

What it means

Island detect — Warning code 07 flashing on the display: Island detect.

Cause: Island operation is detected.

How to fix it

  1. The unit keeps operating.
  2. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.

Source: InfiniSolar-WP-LV-12KW-Premium-manual.pdf, p.51 · InfiniSolar-10KW-manual-20191126.pdf, p.49 · InfiniSolar-15K-manual-20200313.pdf, p.50 · +2 more official manuals

InfiniSolar E 5.5KW

InverterWarning

What it means

Overload — Warning code 07 flashing on the display: Overload.

Cause: Overload.

How to fix it

  1. Restart the unit again.
  2. If problem still exists, please contact your installer.
  3. Recharge or replace the battery Try to reduce the applied load Re-connect the battery Check the ventilation around the unit Try to reduce the load Check if fans run normally.

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

InfiniSolar TX-PA 30KW

InverterWarning

What it means

GroundLoss — Warning code 07 flashing on the display: GroundLoss.

Cause: Ground wire is not detected.

How to fix it

  1. The unit keeps operating.
  2. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.

Source: InfiniSolar-TX-PA_manual.pdf, p.49

ESS510

Energy storage systemWarning

What it means

Overload — Warning code 07 flashing on the display: Overload..

Cause: Overload.

How to fix it

Reduce connected load.

Source: ESS510-manual.pdf, p.71

Galleon II 6K-10K

upsWarning

Also applies to:Galleon II 6KGalleon II 10KGiant Elite 1P/1P 6K-10K

What it means

Over charge — Warning code 07 flashing on the display: Over charge.

Cause: Over charge.

How to fix it

  1. The unit keeps operating.
  2. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.

Source: GalleonII-6-10K-Tower-RT-manual.pdf, p.29 · Giant-Elite-1P-1P_manual.pdf, p.26

Galleon X9 6K-10K RT

upsWarning

Also applies to:Galleon X9 6K RTGalleon X9 10K RT

What it means

Over Charge — Warning code 07 flashing on the display: Over Charge.

Cause: 1) Battery numbers and setting are not matching. 2) Charger voltage is too high or charger failure.

How to fix it

  1. Correct the battery number or its setting
  2. Disconnect the battery and check the charger output voltage. Then, contact the dealer to repair.

Source: Galleon-X9-6-10K-RT_manual.pdf, p.27

Giant Elite 3P/3P

upsWarning

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

What it means

Inverter over temperature — Warning code 07 flashing on the display: Inverter over temperature.

Cause: Inverter over temperature.

How to fix it

  1. The unit keeps operating.
  2. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.

Source: Giant-Elite-3P3P-manual.pdf, p.41

Frequently asked questions

What does error W07 mean on a Voltronic inverter?
It depends on the model — 40 devices use code W07. On the Axpert MAX II TWIN it means: Overload. The card for each model on this page gives its exact meaning and fix.
Is error W07 a fault or a warning?
W07 is a warning: the red LED flashes and the unit keeps running. Fix the underlying condition before it escalates.
How do I clear or fix error W07?
Reduce the connected load by switching off some equipment. 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 KING II TWIN codes All Axpert KING codes All Axpert MKS IV TWIN codes All Axpert MKS IV codes All Axpert MKS III TWIN codes All Axpert MKS II codes All Axpert VM II codes All Axpert VM II (PF1) codes All Axpert VM III codes All Axpert VM IV TWIN (VM4 TWIN) codes All Axpert KS codes All Axpert V (PF1) codes All Axpert WP TWIN codes All Axpert 3KP/5KP 24V codes All InfiniSolar V II 6KW (Split Phase) codes All ESS-A510 codes All Galleon One 5KL 48V codes

Other codes on the InfiniSolar V II

All InfiniSolar V II codes All InfiniSolar V II 1.5KW codes All InfiniSolar V II WP codes All InfiniSolar V codes

Other codes on the InfiniSolar WP LV 12KW Premium

All InfiniSolar WP LV 12KW Premium codes 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 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.