Product Manual

7. Monitoring
This chapter describes all various monitoring methods and for each method how to access live data, historic data and errors.
7.1. LED indications
The solar charger has three LEDs to indicate operational status, a blue, green and a yellow LED. These LEDs respectively
indicate the charge stages bulk, absorption and float, but are also used to indicate other charge situations and fault situations.
Errors are indicated via a combination of LEDs that are on, off, or are blinking. Each LED combination has a meaning, indicating
either a normal operation mode, or indicating an error.
Symbol Meaning
Permanent on
Blinking
Off
Overview of LED indications:
Operation mode Bulk LED Absorption LED Float LED
Not charging
1
Bulk
1
Absorption
2
Manual equalisation (alternating
blinking)
2
Automatic equalisation
2
Float
2
1. The bulk LED will blink briefly every 3 seconds when the system is powered but there is insufficient power to start charging.
2. The LED(s) might blink every 4 seconds indicating that the charger is receiving data from another device, this can be a GX
device (ESS) or a VE.Smart Network link via Bluetooth
Fault mode Bulk LED Absorption LED Float LED
Charger temperature too high
Charger over-current
Charger or panel over-voltage
VE.Smart networking or BMS
issue
Internal error, calibration issue,
settings data lost or current
sensor issue.
For the latest and most up-to-date information about the LED blink codes, refer to the Victron Toolkit app. The app is available for
Apple and Android. The app can be downloaded from the respective app stores or alternatively follow the download links on our
software downloads page.
MPPT solar charger manual
Page 34 Monitoring