Learn about Growatt Error Code 401, its meaning, causes, and solutions for troubleshooting.
Error Code 401 typically indicates a CPU fault in the inverter. This can occur due to overheating, hardware failure, or firmware issues.
To resolve this error, check the inverter's cooling system, ensure proper ventilation, and consider updating the firmware or contacting support.
Fault 401 is indicative of a CPU fault within the inverter. The inverter's CPU is responsible for processing data from the array and managing the system's overall operation. A malfunction may occur due to overheating, component failure, or firmware issues. The CPU's functionality is critical for ensuring proper RISO measurement and ground fault detection, which are essential for safe operation. If the CPU cannot perform its tasks, it may trigger safety protocols to prevent damage or unsafe conditions.
When the Growatt inverter triggers Fault 401, users may observe LED indicators flashing in a specific pattern, often accompanied by alerts in the monitoring app indicating a CPU fault. The inverter may cease to function, leading to a noticeable drop in energy production, and the system may become unresponsive to commands from the monitoring interface.
Always consult a licensed electrician or certified solar installer when working on the inverter or electrical systems to ensure compliance with safety standards and regulations.
To avoid encountering Fault 401 in the future, ensure regular maintenance checks are performed on the inverter, including inspections of wiring and connections. Maintain optimal environmental conditions around the inverter, and keep firmware updated to the latest version as recommended by the manufacturer. Additionally, ensure proper grounding and minimize electrical interference from nearby devices.