Learn about SolarEdge Error Code 31x22, its causes, and how to resolve low optimizer voltage issues.
Error Code 31x22 indicates low voltage detected on the optimizer. This can affect performance and energy production.
Check the connections and wiring of the optimizer. Ensure that the optimizer is functioning correctly and not damaged.
The SolarEdge inverter monitors the voltage output of each string connected to it. When the voltage of string 2 falls below the expected threshold, the inverter triggers the 31x22 error code. This can occur due to a variety of factors affecting the electrical integrity of the string, including insulation resistance issues, ground faults, or physical damage to components. The inverter's internal logic is designed to protect the system from potential hazards, which is why it flags this fault condition.
Homeowners may observe a significant drop in energy production from their solar array, particularly from string 2. The SolarEdge monitoring app will likely display a fault code 31x22, indicating low voltage output. Additionally, users may notice the LED indicator on the optimizer for string 2 flashing or showing a fault state.
Always consult with a licensed electrician or certified solar installer when troubleshooting or repairing solar equipment to ensure safety and compliance with all electrical codes.
Regular maintenance checks should be scheduled to inspect all wiring, connectors, and optimizers for signs of wear or damage. Keeping the solar panels clean and ensuring they receive adequate sunlight can also help maintain optimal performance. Additionally, ensuring that the inverter settings are accurately configured during system can prevent future issues.