W30Warning

Voltronic inverter error W30

Communication lost between DSP and INPUT MCU

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

Axpert MAX II Duplex

InverterWarning

Also applies to:Axpert MAX II Duplex 8KWAxpert MAX II Duplex 11KWAxpert MAX E 11K Duplex

What it means

Communication lost between DSP and INPUT MCU — Warning code 30 flashing on the display: Communication lost between DSP and INPUT MCU.

Cause: Communication lost between DSP and INPUT MCU.

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: Axpert-MAXII-8K-Duplex-Off-grid-manual.pdf, p.45 · Axpert-MAXII-11K-Duplex-Off-grid-manual-20220816.pdf, p.46 · Axpert-MAX-E-11K_Duplex_manual.pdf, p.41

Frequently asked questions

What does error W30 mean on a Voltronic inverter?

W30 means: Communication lost between DSP and INPUT MCU. Communication lost between DSP and INPUT MCU.

Is error W30 a fault or a warning?

W30 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 W30?

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

Related error codes

Other codes on the Axpert MAX II Duplex

All Axpert MAX II Duplex codes All Axpert MAX E Duplex codes

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