Learn about SolarEdge Error Code 31x22, its causes, and how to troubleshoot it effectively.
Error Code 31x22 indicates a low voltage issue with the optimizer. This can affect the performance of your solar system.
To fix a low voltage error, check the connections and wiring of the optimizer. Ensure that the voltage levels are within the specified range.
The SolarEdge inverter triggers error code 31x22 when the voltage from the optimizer falls below the acceptable threshold. This can occur due to multiple factors, including insufficient voltage measurements during the RISO (Insulation Resistance) test, which detects potential ground faults. The inverter continuously monitors the voltage output to ensure it remains within specified limits. If the voltage is consistently low, the inverter interprets this as a fault condition, potentially due to issues in the solar array or optimizer itself.
Homeowners may observe a significant drop in energy production, indicated by lower-than-expected readings on the monitoring app. The optimizer may display a steady red LED, or the inverter may report the fault code 31x22. This could also be accompanied by alerts or notifications regarding the optimizer's performance.
For safety reasons, it is essential to consult a licensed electrician or certified solar installer when troubleshooting electrical components to avoid hazards associated with high voltage systems.
To prevent future occurrences of error code 31x22, regularly inspect and maintain the solar array, ensuring modules are clean and free from shading. Conduct routine checks on electrical connections and wiring integrity. Consider implementing a monitoring system that alerts homeowners to potential issues before they escalate.