Learn about the Growatt 119 GFCI device fault, its causes, and solutions for resolution.
A GFCI device fault indicates a ground fault condition that could pose safety risks. It is essential to address this issue promptly to ensure system safety.
To troubleshoot a GFCI fault, check for moisture or damage in the wiring. Ensure all connections are secure and inspect the GFCI device for proper functionality.
The Growatt inverter employs Ground Fault Detection mechanisms that monitor the insulation resistance of the system. When the insulation resistance (RISO) falls below a predetermined threshold, the inverter triggers a fault code to prevent potential electrical shock or fire hazards. This is crucial for safety, as ground faults can lead to unintended current paths that may endanger both equipment and personnel. The inverter continuously checks for ground faults, and if it detects a discrepancy, it will shut down to mitigate risks associated with electrical leakage.
Users may observe a persistent fault 119 on the inverter display, accompanied by a flashing LED indicator. In monitoring apps, there may be alerts indicating a GFCI device fault, and system production may drop significantly, potentially to zero, indicating that the inverter has ceased operation to protect itself from electrical hazards.
Always consult a licensed electrician or certified solar installer when working with electrical systems to ensure compliance with safety standards and regulations.
To avoid future occurrences of the GFCI device fault, ensure regular maintenance checks are performed, focusing on insulation integrity and moisture protection. Inspect all connections for wear and tear, and replace any damaged components promptly. Implement a routine testing schedule for insulation resistance and verify that the inverter's settings align with the manufacturer's specifications.