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Blue LED slow flash

Blue LED slow flash – WPS function active

SMA · SUNNY BOY SMART ENERGY Inverters

What does Blue LED slow flash mean?

The blue LED flashes slowly for approximately 2 minutes, indicating that the WPS (Wi-Fi Protected Setup) function is currently active on the inverter. This allows for an automatic connection to a network or a direct connection to a smart device.

Common Causes

  • The WPS function has been activated on the inverter by tapping the enclosure lid twice.
  • The inverter is waiting to establish a Wi-Fi connection via WPS.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    If connecting to a smart device, ensure WPS is enabled on your device and open a web browser to https://smalogin.net to access the user interface.

  2. 2

    If connecting to a network (router), ensure WPS is activated on the router and complete the connection process via the inverter's user interface.

  3. 3

    Complete the WPS connection within the approximate 2-minute window while the blue LED is flashing.

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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