Sunny Boy 2500U Installation and Operator’s Manual
SB2500U-11:NE - 22 - SMA Regelsysteme GmbH
• The Sunny Boy switches to fully automatic normal operation. The green LED is
blinking. Should the red LED still be on the GFDI-fuse is defective and has to be
replaced. (You will find a description of the correct type in chapter 4.2.)
Fig. 3.1: Diagram of commissioning
Switch DC ON and
wait 20 seconds
Green LED
blinking?
Remove
GFDI Fuse
Insert GFDI
Fuse
Only Red
LED
ON?
Remove the
ground fault
changing
defective
GFDI Fuse
Normal ope
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