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SMA SB 3800-U User Manual

Page 55

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Displays and Messages

SB3800U-12:SE2006

SMA America

7-7

Control System Fault

The yellow LED remains lit.

The SB3800U has detected a fault within the internal monitoring systems. When the
inverter detects a fault of this kind it will no longer connect to the utility grid. To correct
this, the inverter must be serviced by a qualified service technician. Contact SMA
America for assistance.

Yellow LED is
permanently on