SMA SUNNY BOY SMART ENERGY Inverters

The Arc-Fault Circuit Interrupter (AFCI) has detected 5 electrical arcs within a 24-hour period. For safety, the inverter has permanently stopped feeding power into the grid.

All three LEDs (Green, Red, Blue) glowing solidly at the same time indicates that the inverter is either performing a software update or is going through its initial booting sequence.

A rapid blue LED flash indicates that a System Manager in your setup is requesting the inverter to identify itself. This is part of the normal communication protocol within the system.

The blue LED being off indicates that there is no active communication connection. The inverter is not currently linked to a local network or a smart device.

The blue LED flashes slowly for approximately 2 minutes, indicating that the WPS (Wi-Fi Protected Setup) function is currently active on the inverter. This allows for an automatic connection to a network or a direct connection to a smart device.

A solid blue LED signifies that the inverter has a stable and active communication connection. This means it's successfully connected to a local network or has a direct link with a smart device.

The inverter displays a grid connection error, indicating it is waiting for grid voltage or there is an installation failure. This typically means either the Live (L) or Neutral (N) conductor is not connected, or the utility grid itself has failed.

The inverter cannot connect to the utility grid because the configured country standard or a specific parameter value does not match the local requirements. This prevents the inverter from operating correctly with the grid.

The inverter is experiencing unstable operation and cannot connect to the utility grid. This is typically due to insufficient power being supplied at the DC input of the inverter.

A solid red LED along with event numbers 3501, 3601, or 3701 on the user interface indicates a ground fault in your PV system. This means the electrical insulation from the PV system to the ground is either defective or insufficient, posing a significant safety risk.

The inverter has detected that the effective value of the grid voltage has exceeded the allowed voltage thresholds for a specific duration. This indicates an overvoltage condition originating from the utility grid.

The inverter has detected an internal device fault during its self-diagnosis routine. The precise cause of this fault requires further investigation by a service professional.

The inverter has detected an internal device fault during its self-diagnosis routine. The precise cause of this fault requires further investigation by a service professional.

The inverter has detected an error specifically at its DC input A. This indicates a problem with the photovoltaic string connected to input A or with the inverter's internal input circuitry for that channel.

The inverter has detected an error specifically at its DC input B. This indicates a problem with the photovoltaic string connected to input B or with the inverter's internal input circuitry for that channel.

A temperature sensor located inside the inverter is defective. To prevent potential damage from overheating, the inverter has interrupted its feed-in operation.

A temperature sensor located inside the inverter is defective. To prevent potential damage from overheating, the inverter has interrupted its feed-in operation.

A temperature sensor for the boost converter within the inverter is faulty. This fault causes the inverter's cooling fan to run continuously, indicating an internal sensor issue.

A temperature sensor located inside the inverter is defective. To prevent potential damage from overheating, the inverter has interrupted its feed-in operation.

The inverter has detected an internal interference or malfunction during its self-diagnosis. The exact cause of this internal device interference needs to be determined by a service professional.

The inverter has detected an internal interference or malfunction during its self-diagnosis. The exact cause of this internal device interference needs to be determined by a service professional.

The inverter's operation is halted because a country data set has not been configured. This is a common occurrence during the initial commissioning process. The inverter will begin operation once the configuration is complete.

The inverter is currently operating in backup mode, which means it is likely drawing power from a connected battery or maintaining a local power supply, often during a grid outage.

If the green LED is off, it means there is no DC voltage being supplied to the inverter from your photovoltaic modules. This indicates that the PV system is not currently generating any power.

The inverter is currently waiting for the necessary conditions to be met before it can start feeding power into the grid. These conditions often include sufficient sunlight for power generation or stable grid conditions.

A solid green LED indicates that the inverter is functioning normally and is actively feeding power into the grid. This means your PV system is generating electricity successfully.

This LED pattern indicates a warning: communication with the System Manager has failed. The inverter continues to operate but with restricted functions, possibly using a fallback power level. A specific event message should also appear on the user interface.

A solid red LED signifies that an error has occurred, which has caused the inverter to stop its operation. A specific event message and number should be displayed on the inverter's user interface or System Manager.