SMA SUNNY BOY - Manual (Page 17)

SMA Solar Technology AG Operating Modes
User Manual SB_SMC-BEN092840 17
3.4.2 The Red LED is blinking
Fault on the DC side
Red LED blinking. This blink code overrides any signals on
the green or yellow LEDs.
This blink code can only occur in the following device types:
• SMC 9000TL-10 / 10000TL-10 / 11000TL-10
• SMC 9000TLRP-10 / 10000TLRP-10 / 11000TLRP-10
Possible causes:
– At least one of the varistors is defective. Display message
– At least one of the string fuses is defective. Display message:
In both cases the inverter continues feeding into the grid.
3.4.3 The yellow LED is continuously on
Permanent Disable
In the event of a recurring fault the inverter switches from
operating mode to "Permanent Disable" mode and
ceases grid feed.
A fault may have occurred that cannot be resolved on-
site. If the inverter is equipped with a communications
interface, the installer can try to rectify the problem with
the help of a communications product. Should this be
unsuccessful, please contact the SMA Solar Technology
Serviceline (see Section8 "Contact" (page 45)) to
discuss further action to solve the problem.
Correction of error by installer
Contact your installer to have the error corrected. Instructions on correction errors can be
found in the inverter installation guide.