Error number Display message, cause and corrective measures
9304
Fault in battery connection > Check battery connection
The connection between the Battery Pack and the inverter is disrupted.
Corrective measures:
• Ensure that the power cable and the data cable are properly
connected to the Battery Pack (see inverter manual at www.SMA-
Solar.com).
• Ensure that the plug contacts of the power cable and the data cable
are not damaged.
9305
Unauthorized battery system
The Battery Pack is not suitable for operation with the inverter.
Corrective measures:
• If the battery has been approved by SMA for operation with the
inverter, contact the SMA Service Line.
9306
Deviation in battery voltage
The cause must be determined by the SMAServiceLine.
Corrective measures:
• Contact the SMAServiceLine.
9307
Battery system defective
The cause must be determined by the SMAServiceLine.
Corrective measures:
• Contact the SMAServiceLine.
9308
Communication fault in battery system > Check battery connec-
tion
The connection between the Battery Pack and the inverter is disrupted.
Corrective measures:
• Ensure that the power cable and the data cable are properly
connected to the Battery Pack (see inverter manual at www.SMA-
Solar.com).
• Ensure that the plug contacts of the power cable and the data cable
are not damaged.
9309
Battery system defective
The Battery Pack is defective.
Corrective measures:
• Contact the SMAServiceLine.
4 Troubleshooting
SMA Solar Technology AG
Service Manual 23SB36-50SE-SG-en-10