Solar Lattice

Fault codes › SMA › Sunny Central 500CP XT-1000CP XT

SMA SC-CP-XT 6440

Code
6440
Page
37
ID
fc:sma-sunny-central-cp-xt-6440
IRI
https://solarlattice.org/kb/fc/sma-sunny-central-cp-xt-6440
Status
active
Also known as
6440, SMA 6440
Category
Inverters
Class not stated
Production not stated
Clears not stated

Decoded

Reports transformer seal loss; look at medium voltage transformer; do: transformer inspection.

What can be behind Transformer seal loss

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.

Claims

defined_in

c1 drafted · lead SCCPXT-E7-WA-en-37

reports

c2 verified · fact Transformer seal loss

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

affects

c3 drafted · lead Medium voltage transformer

mitigated_by

c4 drafted · lead Transformer inspection

applies_to

c5 drafted · lead Sunny Central CP XT

Data