SMA SC 9000TL - Manual (Page 15)

SMA Solar Technology AG LED States
User Manual SMC9-11TLRP-BA-BEN111320 15
Red LED
flashing This fault can be caused by either of the following:
At least one of the varistors is defective: display message
<Check Varistor>.
At least one string fuse is defective: display message
<DC fuse>
In both cases the inverter continues feeding into the grid.
Inform your installer.
Yellow LED on The inverter has switched to the operating state
"Dauerhafte Betriebshemmung" (Permanent Shutdown).
This can have several causes. Inform your installer.
Yellow LED
flashing The inverter displays a fault. This can have several causes.
Inform your installer.
Status Description