SMA WB 5000A-11 - Manual (Page 15)

SMA Solar Technology AG LED Signals
User Manual WB5A-6A-BA-BEN114530 15
Red LED on A ground fault has occurred or one of the thermally
monitored varistors on the DC input side is defective.
Inform your installer.
Yellow LED on The inverter is in the operating state
"Permanent Shutdown". This can have several causes.
Inform your installer.
Yellow LED
blinks The inverter displays a disturbance. This can have several
causes. Inform your installer.
Status Description