Learn how to troubleshoot the GoodWe inverter's no grid detected issue and flashing red light.
A flashing red light typically indicates a fault or warning condition. In this case, it suggests that the inverter is not detecting the grid connection.
You can check your grid connection by inspecting the circuit breaker and ensuring that the utility power is active. Additionally, verify that all connections to the inverter are secure.
The 'No Grid Detected' fault occurs when the inverter fails to sense the presence of the utility grid. This can be due to voltage or frequency deviations outside the inverter's operational range, which are critical for safe operation. The inverter employs various protective measures, including Ground Fault Detection and RISO (Insulation Resistance) measurement, to ensure safety. If the inverter detects anomalies, it will disconnect from the grid to prevent damage to the system or hazards to personnel.
When a GoodWe inverter displays a flashing red light indicating 'No Grid Detected', users may notice the inverter's LED pattern showing intermittent flashing. Additionally, the monitoring app may report a drop in production or indicate a grid connection error.
Always consult a licensed electrician or certified solar installer for troubleshooting and repairs to ensure compliance with local electrical codes and safety standards.
To avoid this issue in the future, ensure regular maintenance of the solar array and inverter system. This includes periodic inspections of electrical connections, ensuring proper configuration settings, and monitoring grid conditions through the inverter’s app. Additionally, consider installing surge protection devices to mitigate the effects of voltage fluctuations.