SMA SB 3300TL - Manual (Page 23)

SMA Technologie AG Device Description
Operating Instructions SB3300TL-11:FE1905 Page 19
Device Failure
When the failure occurs, the yellow LED is on for five seconds and then starts the
blinking code by staying off for three seconds and then blinking five times in short
intervals. The code is sent three times. If the failure persists, the signal starts from the
beginning.
The Sunny Boy is in a state where it cannot return to normal operation. Presumably
an internal failure exists in the device.
A qualified electrician has to check the device.
5 s 3 s 1 s 1 s 1 s 1 s
LED on LED off
Yellow LED is blinking 5
times in short intervals.
The signal is repeated 3 times and
then start from the beginning.