5 Troubleshooting SMA America, LLC
22 SB6-11TLUS-BA-eng-BUS121211 User Manual
Goes out briefly
once per second
Derating
At temperatures above +113°F (+45°C), the
inverter continues to operate but reduces the
power so as to protect the internal
components from overheating.
Corrective measures:
• Ensure that the inverter has sufficient
ventilation.
• Ensure that air can emerge from the fan
guards at the bottom of the inverter. If air
is not emerging from the fan guards,
clean the fan guards
(see Section 6.4).
B Red LED Glowing Ground fault
A ground fault is present in the PV array. The
inverter does not feed into the power
distribution grid.
Corrective measures:
• Contact installer.
Position Description Status Explanation
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