Communication Issues; Victronconnect Issues; Ve.direct Port Communication Issues; Ve.smart Communication Issues - Victron energy SmartSolar MPPT 150/45 Manual

For more information on system grounding, see chapter 7.7: "System grounding" in the
The solar charger is non-isolated, the minus of the PV input is at the same potential as the minus of the battery output.

9.6. Communication issues

This chapter describes issues that might arise when the solar charger is connected to the VictronConnect app, other Victron
devices or third-party devices.

9.6.1. VictronConnect issues

For a full troubleshooting guide on the VictronConnect app see the

9.6.2. VE.Direct port communication issues

These are not common and if this occurs it is probably due to one of these issues listed in this paragraph.
Physical cable connector or data port issues Try a different VE.Direct cable and see if the unit will now communicate. Is the
connector inserted properly and deep enough? Is the connector damaged? Inspect the VE.Direct port, are there bent pins? If this
is the case, use long nose pliers to straighten the pins, while the unit is unpowered.
VE.Direct communication issues To check if VE.Direct communication is operating correctly, connect the solar charger to a
GX device and check if the controller shows up on the GX device's list. If it does not show up, check that TX port function in
VictronConnect is set to "Normal communication".
VE.Direct TX port issues Check the "TX port function" setting in VictronConnect. Does the set function match the application it is
being used in. To test if the TX port is operational check its functionality using a
VE.Direct RX Port issues Check the "RX port function" setting in VictronConnect. Does the set function match the application it
is being used in. To test if the RX port is operational check its functionality using a

9.6.3. VE.Smart communication issues

A VE.Smart Network is a wireless communication network between several Victron products using Bluetooth. In case of issues
with a VE.Smart Network refer to the

9.6.4. Bluetooth issues

Please note that it is highly unlikely that the Bluetooth interface is faulty. The problem is most likely caused by something else.
Use this chapter to quickly rule out some of the common causes of Bluetooth issues.
For a full troubleshooting guide see the
• Check if the solar charger is equipped with Bluetooth
Only SmartSolar models have built-in Bluetooth, the BlueSolar models do not. If the model does not have built-in Bluetooth, a
VE.Direct Bluetooth Smart dongle
• Check if Bluetooth is enabled
It is possible to enable/disable Bluetooth in the product settings. To re-enable:
Connect to the solar charger via the VE.Direct port.
Navigate to the controller settings and then to "product info".
Re-enable Bluetooth.
• Check if the controller is powered-up
Bluetooth is active as soon as the solar charger is powered-up.
This can be checked by looking at the LEDS:
If all LEDs are off, the unit is not powered up.
If any of the LEDs are on, blinking or pulsing with a few seconds interval, the unit is powered-up and Bluetooth should be
functional.
• Check that Bluetooth is in range
In open space the maximum Bluetooth distance is about 20 meters. In a build-up area, inside a house, a shed, a vehicle or a
boat this distance can be a lot less.
• The Windows VictronConnect app does not support Bluetooth
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MPPT solar charger manual
Smart Network manual.
VictronConnect manual.
or VE.Direct to USB interface can be used.
Wiring Unlimited book.
VictronConnect manual.
TX digital output cable.
VE.Direct non-inverting remote on/off
Troubleshooting and Support
cable.