Learn about Sungrow Error Code 020, its meaning, causes, and solutions for internal module failures.
Error Code 020 indicates an internal module abnormal failure, leading to a shutdown. This can affect the inverter's performance and requires immediate attention.
To troubleshoot Error Code 020, check the inverter's internal connections and ensure all components are functioning properly. If issues persist, consult the manufacturer's guidelines.
Error 020 signifies an internal module abnormal failure shutdown. This often occurs when the inverter detects a fault condition that compromises its operational integrity. The inverter continuously monitors parameters such as insulation resistance (RISO) to identify ground faults, which can lead to unsafe conditions. If the RISO measurement falls below acceptable levels, the inverter will trigger a shutdown to prevent potential damage or safety hazards. Other factors, such as grid frequency limits or overvoltage conditions, can also cause the inverter to enter a protective state.
Homeowners may notice the inverter displaying error 020 on its LED screen. Additionally, the monitoring app may show a significant drop in energy production, often accompanied by alerts indicating abnormal shutdowns. The inverter may also emit warning sounds or notifications, indicating an internal failure has occurred.
Always ensure that work on the solar system is performed by a licensed electrician or certified solar installer to adhere to safety protocols and the National Electrical Code.
To prevent future occurrences of error 020, conduct regular maintenance checks on the inverter and array. This includes inspecting wiring for wear, ensuring all connections are secure and free of corrosion, and maintaining adequate airflow around the inverter. Implementing surge protection devices can also help mitigate overvoltage issues caused by transient surges.