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Green LED pulsing

Green LED pulsing — Dynamic feed-in operation

SMA · SUNNY BOY Solar Inverters

What does Green LED pulsing mean?

The inverter is feeding power into the grid, and the pulsing speed of the green LED dynamically reflects the current power output. Faster pulsing means higher power output, slower pulsing means lower output.

Common Causes

  • Normal operation with varying solar irradiation.
  • Dynamic power display feature is enabled.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    No action needed, this indicates normal operation.

  2. 2

    If you prefer a steady light, you can disable the dynamic power display via the user interface (see Section 4.11 in the manual).

  3. 3

    Monitor the inverter's display or Sunny Portal for detailed power information.

Browse all codes in this manual (31)
Verified technical data. Last updated: April 2026

Related Faults

1501Event 1501 — Reconnection fault, grid data mismatch301Event 301 — Grid fault, voltage out of range3301, 3303Event 3301 or 3303 — Unstable operation, insufficient DC power
Source: SMA SUNNY BOY Solar Inverters
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