12 Troubleshooting
SMA Solar Technology AG
Operating manual
SB55-LV-JP-41-BE-en-13
70
Event number
Message, cause and corrective measures
1101
Installation fault > Check connection
A second line conductor is connected to O.
Corrective measures:
• Connect the neutral conductor O to the correct terminal at the AC
connector.
1302
Waiting for grid voltage > Installation failure grid connection > Check
grid and fuses
U/W or O not connected.
Corrective measures:
• Ensure that U/W and O are connected.
• Ensure that the circuit breaker is switched on.
• Ensure that the AC cable is not damaged and that it is connected
correctly.
1501
Reconnection fault grid
The value of a grid parameter you have set does not correspond to the local
requirements. The inverter cannot connect to the utility grid.
Corrective measures:
• Ensure that all grid parameters are set correctly.
3302
3303
Unstable operation
There is not enough power at the DC input of the inverter for stable operation.
The inverter cannot connect to the utility grid.
Corrective measures:
• Ensure that the PV array is designed correctly.
• Ensure that the PV array is not covered by snow or otherwise shaded.
• Ensure that the PV array is free of errors.