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Green LED glowing

Green LED glowing — Feed-in operation at high power

SMA · SUNNY BOY Solar Inverters

What does Green LED glowing mean?

The inverter is actively feeding power into the utility grid, operating at 90% or more of its capacity. This indicates normal, high-power operation.

Common Causes

  • Normal operation with high solar irradiation.
  • Optimal conditions for power generation and grid feed-in.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    No action needed, this indicates normal and efficient operation.

  2. 2

    Monitor the inverter's display or Sunny Portal for performance data if desired.

  3. 3

    Ensure the dynamic power display via green LED is set as desired (can be turned off if preferred).

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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