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Blue LED fast flash

Blue LED flashing fast — System Manager requesting inverter identification

SMA · SUNNY BOY SMART ENERGY Inverters

What does Blue LED fast flash mean?

A rapid blue LED flash indicates that a System Manager in your setup is requesting the inverter to identify itself. This is part of the normal communication protocol within the system.

Common Causes

  • The System Manager is attempting to identify or communicate with the inverter.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    No direct action is usually needed as this is an automatic system process.

  2. 2

    If this state persists or seems unusual, check the System Manager's settings and status.

  3. 3

    Ensure there is a stable connection between the System Manager and the inverter.

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 offBlue LED off — No active connection
Source: SMA SUNNY BOY SMART ENERGY Inverters
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