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Yellow LED blinks 5 times

Yellow LED blinks 5 times — Internal device fault

SMA · Sunny Boy Inverters

What does Yellow LED blinks 5 times mean?

The inverter has encountered an internal fault that prevents it from operating normally. This type of fault typically requires professional servicing.

Common Causes

  • An internal electronic or component failure within the inverter.
  • System malfunction.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Contact SMA for assistance, providing them with the blinking code and a description of the issue.

  2. 2

    Do not attempt to open or repair the inverter yourself, as this can void warranties and pose safety risks.

  3. 3

    Your installer may need to service or replace the inverter if the internal fault is not repairable on-site.

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 18)Search more codes in this manual