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Green LED pulsing

Green LED pulsing — Dynamic feed-in operation

SMA · Sunny Boy Inverters

What does Green LED pulsing mean?

The inverter is actively feeding power into the utility grid, and the pulsing pattern of the green LED indicates its dynamic power output. A faster pulse usually means higher power.

Common Causes

  • Inverter operating and dynamically adjusting power output
  • Amount of available solar power fluctuating

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    No action is required, this indicates normal and dynamic operation.

  2. 2

    Monitor your energy production via the Sunny Portal or inverter user interface.

  3. 3

    If you do not want the dynamic power display, you can switch it off in the inverter's 'Device > Operation' settings, then the LED will glow permanently during feed-in.

Browse all codes in this manual (70)
Verified technical data. Last updated: April 2026

Related Faults

!PV-Overvoltage!!PV-Overvoltage! !DISCONNECT DC! — Overvoltage at DC input10251Event 10251 — Communication status to network switch or DHCP server changed10252Event 10252 — Communication disrupted
Source: SMA Sunny Boy Inverters
Open Manual (Page 16)Search more codes in this manual