Learn about the Solis AFCI self-detection error and how to troubleshoot it effectively.
The error may be caused by communication faults between the AFCI module and the inverter. Checking connections and module functionality is essential.
To resolve the fault, ensure all wiring is secure and inspect the AFCI module for damage. Resetting the inverter may also help.
The AFCI (Arc Fault Circuit Interrupter) self-detection error is triggered when the inverter's internal diagnostics detect an anomaly in the electrical characteristics of the array. This can occur due to a failed RISO measurement, which indicates insufficient insulation resistance and potential ground faults. The inverter continuously monitors for ground faults and arc conditions; if it senses irregularities, it will shut down to prevent electrical hazards. Additionally, fluctuations in grid frequency or voltage can lead to misinterpretation of the AFCI status, causing the inverter to trigger a fault condition.
The Solis inverter displays an error code related to AFCI self-detection, which may manifest as blinking LED patterns on the inverter or alerts in the monitoring app. Users may also notice a significant drop in energy production, indicating that the inverter has ceased operation due to the fault.
Always ensure that work on the solar inverter is performed by a licensed electrician or certified solar installer to mitigate the risk of electrical shock or equipment damage.
To prevent future AFCI self-detection errors, regularly inspect and maintain wiring connections and grounding systems. Implement routine RISO testing to ensure insulation integrity and address any signs of wear or damage promptly. Additionally, consider utilizing surge protectors to mitigate voltage fluctuations from the utility grid.