Solar Lattice

Fault codes › SMA › Sunny Boy 3.0-7.7-US (SBx.x-1SP-US-41)

SMA SB-US-41 10253

Code
10253
Shown as
|tn4|: connection speed goes to |tn8|
Page
72
ID
fc:sma-sb-us-41-10253
IRI
https://solarlattice.org/kb/fc/sma-sb-us-41-10253
Status
active
Also known as
10253, SMA 10253, |tn4|: connection speed goes to |tn8|
Category
Inverters
Class informational drafted · lead
Production not stated
Clears not stated

Decoded

Reports degraded network link; look at network cable; do: communication cable check, network connection check.

What can be behind Degraded network link

Failure modes that present as the reported condition, and the tests that tell them apart.

Defined in

The manufacturer's own cause and corrective text is not reproduced here.

Same condition on other equipment

SMA
SMA SB-US-40 10248-10249, SMA SB-US-40 10253, SMA SB-US-40 10254, SMA SB-US-41 10248, SMA SB-US-41 10254, SMA PEAK3-US 10248, SMA PEAK3-US 10253, SMA PEAK3-US 10254, SMA CORE1-US 10248, SMA CORE1-US 10253, SMA CORE1-US 10254

Same code in other families

Claims

defined_in

c1 drafted · lead SBxx-US-1XP-41-BA-en-12

reports

c2 drafted · lead Degraded network link

Applies when the speed drops to 10 Mbit.

affects

c3 verified · fact Network cable

verified by: review-workflowverified on: 2026-10-23

mitigated_by

c4 drafted · lead Communication cable check

review note: support check: partial - The network cable checks fit, but the concept is communication cable check and the passages only name the Ethernet network cable.

c5 drafted · lead Network connection check

Verify router and switches operate correctly.

has_event_class

c6 drafted · lead Informational (status or configuration message)

Corrective action needed only when the status is 10 Mbit.

review note: support check: partial - It is a status change notification and the corrective action applies only for 10 Mbit, but informational is not stated.

applies_to

c7 drafted · lead Sunny Boy 3.0-7.7-US-41 proposed

Data