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Green LED fast pulse

Green LED pulsing quickly — Inverter in backup operation

SMA · SUNNY BOY SMART ENERGY Inverters

What does Green LED fast pulse mean?

The inverter is currently operating in backup mode, which means it is likely drawing power from a connected battery or maintaining a local power supply, often during a grid outage.

Common Causes

  • Inverter is operating in backup mode, typically due to a grid outage.
  • The system is configured for backup operation.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    No action is needed if backup operation is expected, for example, during a power outage.

  2. 2

    Monitor your system's status through the SMA Energy App for more detailed information on current operation.

  3. 3

    If backup operation is unexpected, verify the settings for your battery system and grid connection.

Browse all codes in this manual (28)
Verified technical data. Last updated: April 2026

Related Faults

AFCI tripped (5 arcs)AFCI tripped (5 arcs) — Inverter feed-in permanently interruptedAll 3 LEDs solidAll 3 LEDs solid — Inverter update or booting procedureBlue LED fast flashBlue LED flashing fast — System Manager requesting inverter identification
Source: SMA SUNNY BOY SMART ENERGY Inverters
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