Learn about SMA error code 202 for grid undervoltage, including causes and solutions.
Error code 202 indicates that the grid voltage is below acceptable levels. This can affect the inverter's performance and may require immediate attention.
To troubleshoot grid undervoltage, check the voltage levels at your inverter's input. Ensure that the utility grid is stable and consult your utility provider if necessary.
Error 202 is triggered when the inverter detects that the voltage from the utility grid falls below the acceptable threshold. This undervoltage condition can lead to potential damage to the inverter and connected components if not addressed. The inverter continuously monitors grid voltage levels and compares them against predefined limits. If the voltage dips below these limits, the inverter enters a protective mode to prevent damage, effectively disconnecting from the grid.
When the SMA inverter displays error 202, users typically observe a flashing LED indicator, often accompanied by alerts on the monitoring app indicating a grid undervoltage condition. Additionally, system performance may drop significantly, with reduced energy production visible on performance graphs or real-time monitoring dashboards.
For any electrical work or troubleshooting, it is crucial to engage a licensed electrician or certified solar installer to ensure safety and compliance with local codes.
To prevent future occurrences of error 202, conduct regular maintenance checks on the inverter and its connections, ensuring all electrical components are in good condition. Keeping abreast of local grid conditions and working with utility providers can also help mitigate risks associated with grid instability.