Diagnostic tool

LED decoder

Choose a device and mark which LEDs are on, flashing or off. We will show the matching descriptions from the manufacturer’s manual — translated, with guidance on what to do.

Digital Multi Control panel with status LEDs

The decoder requires JavaScript to be enabled. You can also find the LED tables in the manuals listed below.

LEDs are a shortcut — the app gives the full picture

If the device has Bluetooth or is connected to a GX device, you can read the error number and details in VictronConnect or in the VRM portal. You can find the meaning of the numbers in the error codes.

Devices in the decoder

SmartSolar MPPT 75/10–100/20 — bulk, absorption and float LEDs: charging phases and errors.
MultiPlus-II 230 V — operation, alarms, charging and VE.Bus error codes shown by LEDs.
Inverter Smart (Phoenix) — inverter, ECO and alarm LEDs, including pulse patterns.
Blue Smart IP65 (230 V) — TEST, BULK, ABS, FLOAT and STORAGE LEDs.
Lynx Smart BMS — status LED (including the number of red flashes) and Bluetooth LED.

Devices this applies to

SmartSolar MPPT 75/10–100/20Small solar controllers with Bluetooth for campervans, boats and cabins.

MultiPlus-IIInverter/charger with UPS function: pure 230 V sine wave, PowerAssist supports a weak shore connection.

Inverter Smart (Phoenix)Stand-alone 1600–5000 VA inverter with Bluetooth and ECO mode — without a charger.

Blue Smart IP65Mains charger for 12/24 V with Bluetooth and Li-ion mode, IP65 enclosure.

Lynx Smart BMS / NGBMS with contactor and current measurement for Smart LiFePO4 or Lithium NG banks.

Sources

Content checked against Victron Energy documentation (datasheets and manuals) — as of 19 September 2026. Report a content error · Revision log