Learn about SolarEdge Error Code 18x75, its causes, and solutions for over-temperature shutdowns during heatwaves.
Error Code 18x75 indicates an over-temperature condition in the inverter, leading to a shutdown. This typically occurs during extreme heat.
To prevent shutdowns, ensure proper ventilation around the inverter and avoid direct sunlight exposure. Regular maintenance can also help.
The SolarEdge inverter is designed with built-in safeguards to prevent damage from overheating. The fault code 18x75 indicates that the inverter has detected an over-temperature condition, triggering a shutdown to protect internal components. This can occur when ambient temperatures exceed operational limits or when the inverter's cooling mechanisms are compromised. The inverter continuously monitors its internal temperature and will shut down if it exceeds a predetermined threshold, ensuring safety and longevity of the unit.
Homeowners may observe the inverter's LED indicator flashing a red pattern, indicating a fault condition. The monitoring app may display an error message corresponding to fault code 18x75, and there may be a noticeable drop in solar production, potentially resulting in zero output during peak sunlight hours.
Always consult with a licensed electrician or certified solar installer before performing any maintenance or troubleshooting on your solar inverter to ensure safety and compliance with local codes.
To prevent future occurrences of fault code 18x75, ensure that the inverter is installed in a shaded, well-ventilated area away from direct sunlight. Regularly inspect the system for debris or obstructions that may affect airflow. Consider implementing a thermal management strategy, such as installing a fan or heat sink, if the inverter is located in a particularly hot environment.