Troubleshooting; Functionality Issues; Unit Is Dead; Auxiliary Port Not Working - Progress Solar/Wind SLT 700 Series Operator's Manual

10. Troubleshooting

10.1. Functionality issues

10.1.1. Unit is dead

On first connection the display of the head unit should be active.
If this is not the case check the fuse in the +B1 cable and also check the cable itself and its terminals.
In case the temperature sensor is used:
• The temperature sensor M8 cable lug must be connected to the positive pole of the battery bank (the red wire of the sensor
doubles as the power supply wire).
• Check the fuse in the positive (red) cable.
• Make sure the correct temperature sensor is used. Note that the MultiPlus temperature sensor is not suitable.
• Make sure the temperature sensor has been connected the right way. The red cable should connect the +B1 terminal and the
black wire to the +B2 terminal.
See the Auxiliary connection for temperature monitoring [9]

10.1.2. Auxiliary port not working

Check the fuse in the +B2 cable and also check the cable itself and its terminals.
In case a second battery (starter battery) is monitored:
Make sure the second battery negative is connected to the load side of the battery monitor shunt. See the chapter
connection for monitoring the voltage of a second battery [8]
In case the temperature sensor is used:
• The temperature sensor M8 cable lug must be connected to the positive pole of the battery bank (the red wire of the sensor
doubles as the power supply wire).
• Check the fuse in the positive (red) cable.
• Make sure the correct temperature sensor is used. The MultiPlus temperature sensor does not work with the battery monitor.
• Make sure the temperature sensor has been connected the right way. The red cable should connect to the +B1 terminal and
the black wire to the Aux+B2 terminal.
See the Auxiliary connection for temperature monitoring [9]

10.1.3. Unable to change VictronConnect settings

Settings can only be changed if the battery monitor is running on the most up to date firmware. Update to the latest firmware with
the VictronConnect app.

10.2. Connection issues

10.2.1. Cannot connect via Bluetooth

It is highly unlikely that the Bluetooth interface is faulty. Some pointers to try before seeking support:
• Is the battery monitor powered up? The display on the head unit should be active. If not see the
• Is another phone or tablet already connected to the battery monitor? Only one phone or tablet can be connected to the battery
monitor at any given time. Make sure no other devices are connected and try again.
• Is the VictronConnect app up to date?
• Are you close enough to the battery monitor? In an open space, the maximum distance is about 20 meters.
• Are you using the Windows version of the VictronConnect app? This version is unable to connect via Bluetooth. Use Android,
iOS or macOS instead (or use the USB - VE.Direct interface).
Page 50
Manual - BMV-712 Smart
chapter for connection instructions and a wiring diagram.
for connection instructions and a wiring diagram.
chapter for connection instructions and a wiring diagram.
Auxiliary
Unit is dead [50] chapter.
Troubleshooting