Learn about Growatt error code 117, its meaning, causes, and solutions for troubleshooting.
Error code 117 typically indicates a relay issue within the inverter. This can affect the system's performance and requires immediate attention.
To troubleshoot error code 117, check the relay connections and ensure they are secure. If the issue persists, consult the user manual or contact support.
The Growatt error 117 indicates a relay fault, which is a critical safety mechanism in the inverter designed to disconnect the system in case of electrical anomalies. This fault can be triggered by several factors, including ground fault detection, which monitors insulation resistance (RISO) to ensure safe operation. If the insulation resistance falls below the acceptable threshold, the inverter will interpret this as a potential ground fault, activating the relay to prevent further damage or safety hazards. The inverter also checks for grid frequency limits; deviations can cause operational issues leading to a relay fault.
The Growatt inverter will display a fault 117, typically accompanied by a red LED indicator that flashes in a specific pattern. Users may notice a drop in energy production reported on the monitoring app, indicating that the inverter is not operating correctly. Additionally, the inverter may show a communication error with the monitoring system, preventing real-time data updates.
Always ensure that work is performed by a licensed electrician or certified solar installer to prevent electrical hazards and ensure compliance with local codes and standards.
To avoid encountering error 117 in the future, conduct regular maintenance checks on the inverter and array. Schedule periodic insulation resistance testing to ensure that wiring and connections remain intact. Ensure that the inverter is installed in a dry, clean environment to prevent moisture ingress and corrosion. Regularly inspect grounding connections and ensure compliance with NEC requirements for grounding and bonding systems.