Learn about Growatt error code 305, its causes, and how to resolve overload protection issues effectively.
Error code 305 indicates an overload protection issue in the inverter. This typically occurs when the system is drawing more power than it can handle.
To prevent overload protection errors, ensure that the inverter is not overloaded by checking the connected load and adjusting it as necessary.
The Growatt inverter employs overload protection to safeguard its internal components from damage. When the inverter detects a current exceeding its rated capacity, it triggers fault 305. This could be due to insufficient string voltage, which results in the inverter attempting to draw more current than it can handle. Ground fault detection mechanisms may also engage if there is an insulation failure, leading to a short circuit condition. The inverter continuously monitors grid frequency and voltage to ensure safe operation, and any deviation from acceptable parameters may also result in a shutdown.
Homeowners may observe a red LED indicator on the Growatt inverter, signaling a fault condition. Additionally, monitoring apps may show an error 305, indicating overload protection has been triggered. Users may also notice a significant drop in power production, often accompanied by an inability to feed energy back into the utility grid.
Always consult a licensed electrician or certified solar installer when troubleshooting electrical components to ensure safety and compliance with local codes.