SMA SB 4200TL Multi-String - Manual (Page 23)

SMA Technologie AG Device Description
Operating Instructions SB4200-12:FE4804 Page 23
Device Failure
When the failure occurs, the yellow LED is on for five seconds and then starts the blin-
king code by staying off for three seconds and then blinking five times in short inter-
vals. The code is sent three times.
If the failure persists, the signal starts from the beginning.
The Sunny Boy is in a state it cannot leave for normal operation. Presumably there is
an internal failure in the device.
A qualified electrician has to examine 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.