If the BMS communication to the hybrid inverter SHxxRT is abnormal, the Error Code 714 will be shown.

1. Check the Communication connection between inverter and battery if the connection is correctly done. The first two pins of the RJ45 cable on the battery side are connected to the CAN H and CAN L of the inverter.

Orange-white CAN H->5

Orange CAN L -> 7.

In particular, make sure that the communication wires on the side of the hybrid inverter make good contact in the inverter communication connector. The communication between the inverter and the battery is normal, if you can see the following parameters in the running information.

2. Disconnect the communication-cable on the inverter side and measure, if communication voltage is between 3,3V – 5.0V coming from BMS at the open wires.

3. Check if you can measure 3.3V – 5.0V on the communication terminal of the inverter.

If multimeter doesn’t show 3,3V-5,0V coming from BMS, exchange the cable.

If multimeter still doesn’t show 3.3V – 5.0V, it is recommended to replace the BMS.

4. If the problem is still present, exchange the inverter.

5. If the problem is still present, exchange the battery with a whole new one.*