Discover why your LG Energy Solution RESU battery is not communicating and how to fix it.
Common issues include connectivity problems, firmware updates, or wiring faults that can disrupt communication.
To reset your LG RESU battery, turn off the power supply, wait for a few minutes, and then turn it back on.
The communication between the RESU and the inverter is critical for optimal operation and monitoring. If the inverter detects a fault, it may trigger a communication error due to several electrical logic checks. For instance, if the insulation resistance (RISO) measurement falls below acceptable levels, or if ground fault detection is activated, the inverter will cease communication to protect the system. This is a safety protocol to prevent further damage or hazards.
Users may observe that the LED indicators on the LG Energy Solution RESU are not lit, or they may display a steady red light, indicating a fault. Additionally, alerts may appear on the monitoring app, highlighting that the battery is not communicating with the inverter. System performance may drop, with the expected energy usage or production not aligning with actual readings.
Always consult a licensed electrician or certified solar installer for repairs and troubleshooting to ensure compliance with safety standards and electrical codes.
To avoid future communication issues, regularly inspect and maintain communication cables and connections. Ensure that firmware updates are performed promptly and verify inverter settings during routine maintenance checks. Conduct insulation resistance testing periodically to ensure system integrity.