SMA WB 5000 Installation - Manual (Page 49)

SMA Technology AG Replacing the varistors
Installation Guide WB50_60-11:SE4005 Page 49
If no earth leakage and no defective varistor were found, there is probably a fault in
the Sunny Boy 3800. In this case, contact the SMA hotline to discuss further steps.
9. Switch the line circuit breaker to the "on"
position.
10. Now check whether the LED display on the
Windy Boy 5000 / 6000 indicates that the
device is functioning correctly.
On!
Off