11 Troubleshooting
SMA Solar Technology AG
Operating manual
SBSxx-10-BE-en-11
94
Event number
Message, cause and corrective measures
3601
High discharge curr. > Check generator
The leakage current of the inverter and the battery is too high. There is a
ground fault, a residual current or a malfunction.
The inverter interrupts parallel grid operation immediately after exceeding a
threshold. When the fault is eliminated, the inverter automatically reconnects
to the utility grid.
Corrective measures:
• Check the battery and DC cabling for ground faults.
3701
Resid.curr.too.high > Check generator
The inverter detected a residual current due to brief grounding of the battery
or the DC cabling.
Corrective measures:
• Check the battery and DC cabling for ground faults.
3801
3802
3805
DC overcurrent > Check generator
Overcurrent at the DC input. The inverter briefly interrupts feed-in operation.
Corrective measures:
• If this message is displayed frequently, ensure that the battery has been
correctly connected and that the correct battery has been selected.
3901
DC power too low
Corrective measures:
• Check whether a new firmware version is available for the inverter and
the battery. If a newer version is available, perform the firmware update.
• If no new firmware version is available, check for other events. If there
are other events, carry out the corrective measures for the other events.
