Learn about Solis Inverter Error Code 1003, its meaning, causes, and solutions for DC injection faults.
Error Code 1003 indicates a DC injection fault in the Solis Inverter, which can affect performance. It is crucial to address this issue to ensure safe operation.
To prevent DC injection faults, ensure proper installation and regular maintenance of the inverter. Monitoring system performance can also help identify issues early.
Error 1003 indicates a DC injection fault, which occurs when the inverter detects an abnormal level of DC current flowing back into the grid. This can happen due to various electrical anomalies, such as ground faults or insulation failure, resulting in inadequate insulation resistance (RISO) measurements. The inverter's internal safety mechanisms are designed to protect the utility grid and equipment from potential damage caused by excessive DC injection, thereby triggering this fault to prevent unsafe operating conditions.
When the Solis inverter triggers Error 1003, users may observe a solid red LED indicator on the inverter, signaling a fault condition. Monitoring apps may display alerts indicating a DC injection fault, and users might notice a significant drop in energy production, with the inverter ceasing to output power altogether.
Always consult a licensed electrician or certified solar installer when dealing with electrical systems. Working on live circuits can pose serious safety risks.
To avoid future occurrences of Error 1003, ensure regular maintenance checks on the solar array and inverter. Inspect all wiring and connections periodically for wear and tear, and perform insulation resistance tests annually. Keeping the inverter and array free from debris and ensuring proper sealing against moisture ingress will also help mitigate potential issues.