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Blue LED flashes quickly

Blue LED flashes quickly — WPS function active

SMA · SUNNY BOY Solar Inverters

What does Blue LED flashes quickly mean?

The blue LED flashes rapidly for approximately two minutes when the WPS function is enabled on the inverter. This indicates that the WPS function is active and ready to connect to a network or an end device.

Common Causes

  • User activated WPS function by tapping the enclosure lid twice.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Wait for the WPS function to complete its connection process.

  2. 2

    Check your end device to ensure it is attempting to connect via WPS.

  3. 3

    If not connecting, try activating WPS again on the inverter by tapping the enclosure lid twice.

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
Open Manual (Page 25)Search more codes in this manual