Sunny Boy 2500U Installation and Operator’s Manual
SB2500U-11:NE - 31 - SMA Regelsysteme GmbH
4.3 Failure Indication
Consistent Failure
Operation
Earth Fault
Failure
The yellow failure LED is permanently on.
This is a failure of the utility monitoring or the automatic disconnection device MSD. The
Sunny Boy has detected a failure in the disconnection device and has suppressed the
utility interaction on startup. The Sunny Boy must be checked by service personnel and
can only be put back to operation after a thorough checkup.
To Next Page
Loading...
