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7.5. RS error code overview
The error codes are displayed on the VictronConnect app, a remote display or via a connected GX device.
For the most up-to-date version of this list see this link: https://www.victronenergy.com/live/mppt-error-codes.
Note that not all of these errors might apply to your product. Some error types only apply to solar chargers,
DC-DC chargers or AC chargers or are specific only to certain models within a charger group.
Error 2 - Battery voltage too high
• This error will auto-reset after the battery voltage has dropped. This error can be due to other charging equipment connected to
the battery or a fault in the charge controller.
Error 3, Error 4 - Remote temperature sensor failure
• Check if the T-sense connector is properly connected to a remote temperature sensor. Most likely cause: the remote T-sense
connector is connected to the BAT+ or BAT- terminal. This error will auto-reset after proper connection.
Error 5 - Remote temperature sensor failure (connection lost)
• Check if the T-sense connector is properly connected to a remote temperature sensor. This error will not auto-reset.
Error 6, Error 7 - Remote battery voltage sense failure
• Check if the V-sense connector is properly connected to the battery terminals. Most likely cause: the remote V-sense connector
is connected in reverse polarity to the BAT+ or BAT- terminals.
Error 8 - Remote battery voltage sense failure (connection lost)
• Check if the V-sense connector is properly connected to the battery terminals.
Error 11 - Battery high ripple voltage
• High DC ripple is usually caused by loose DC cable connections and/or too thin DC wiring. After the inverter has switched off
due to high DC ripple voltage, it waits 30 seconds and then restarts.
After three restarts followed by a shutdown due to high DC ripple within 30 seconds of restarting, the inverter will shutdown and
stops retrying. To restart the inverter, switch it Off and then On.
Continuous high DC ripple reduces the inverter life expectancy
Error 14 - Battery low temperature
• The charger is stopped to avoid charging LiFePO4 batteries at low temperature as this damages the cells.
Error 17 - Controller overheated despite reduced output current
• This error will auto-reset after charger has cooled down. Check the ambient temperature and check for obstructions near the
heat sink.
Error 18 - Controller over-current
• This error will auto-reset. If the error does not auto-reset disconnect the charge controller from all power-sources, wait 3
minutes, and power up again.
Possible causes for an over-current on the battery terminals:
• switching on/off a very large load on the battery side.
• sudden change in irradiance causing a temporary over-power in the mppt.
• overloading the inverter ac output.
Possible solutions:
• if possible provide adequate cooling for the unit, a cooler unit can handle more current.
• reduce the load on the inverter.
• charge the battery before using the inverter, at higher battery voltages the same amount of power requires less current.
Error 20 - Maximum Bulk-time exceeded
• For solar chargers:
The maximum bulk time protection is a feature that was in the chargers when they were just released (2015 or earlier) and later
the feature was removed.
If you do see this error, then update to the latest firmware.
If you then still have the error, perform a reset to factory defaults of the configuration, and reconfigure the solar charger.
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Isolated SmartSolar MPPT RS
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