Learn about Sungrow Error Code 202, its meaning, causes, and solutions for troubleshooting.
Error Code 202 indicates an overcurrent fault in the PV hardware. This can lead to system shutdowns or reduced efficiency.
To troubleshoot Error Code 202, check the wiring and connections for any shorts or overloads. Ensure that the system is not exceeding its rated capacity.
Error 202 is triggered when the inverter detects an overcurrent condition, which can occur for several reasons. The inverter continuously monitors the output current from the solar array and compares it against predefined limits. If the current exceeds these limits, the inverter will shut down to protect itself and the connected equipment. This can result from excessive irradiance leading to higher-than-expected output, faults in the wiring that increase resistance, or short circuits that create sudden surges in current. The inverter's protective logic is designed to prevent damage, adhering to safety regulations outlined in the National Electrical Code (NEC).
Upon encountering Error 202 on a Sungrow inverter, users may observe the inverter's LED indicator flashing a specific pattern, typically indicating an overcurrent situation. Additionally, the monitoring app may display alerts related to reduced energy production, with a noticeable drop in output wattage compared to previous performance metrics.
Always ensure that any troubleshooting or maintenance is conducted by a licensed electrician or certified solar installer to adhere to safety protocols and local electrical codes.
To mitigate the risk of encountering Error 202 in the future, ensure that all wiring is rated for the expected current load and regularly inspected for wear and tear. Utilize appropriately sized breakers to match the inverter and array configurations. Additionally, maintain a clean array surface to optimize energy production and avoid excessive output during peak sunlight hours.