Solar Lattice

Fault codes › Huawei › Huawei SUN2000-25KTL-US / SUN2000-30KTL-US

Huawei SUN2000-25-30KTL-US 504

Code
504
Shown as
Version Mismatch
Vendor severity
Minor
Page
102
ID
fc:huawei-sun2000-25-30ktl-us-504
IRI
https://solarlattice.org/kb/fc/huawei-sun2000-25-30ktl-us-504
Status
active
Also known as
504, Huawei 504, Version Mismatch
Category
Inverters
Class warning drafted · lead
Production unaffected verified · fact
Clears not stated

Decoded

Reports software version mismatch; do: firmware update.

What can be behind Software version mismatch

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

Huawei
Huawei SUN2000-45KTL-US-HV-D0 504
Yaskawa Solectria
Yaskawa Solectria SGI-XTM Vsense Mismatch

Same code in other families

Claims

defined_in

c1 drafted · lead Huawei SUN2000-25-30KTL-US User Manual

has_event_class

c2 drafted · lead Warning (device continues, a condition is flagged)

from the Type column

reports

c3 drafted · lead Software version mismatch

mitigated_by

c4 drafted · lead Firmware update

has_production_effect

c5 verified · fact No production effect

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

applies_to

c6 drafted · lead Huawei SUN2000-25KTL-US / SUN2000-30KTL-US

Data