Sma SUNNY BOY User Manual download pdf (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 <Check Varistor>

– At least one of the string fuses is defective. Display message: <DC fuse>

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.

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Sma SUNNY BOY User Manual Page 17