Solar Lattice

Fault codes › SMA › Sunny Island 4548-US / 6048-US

SMA SI-US W953

Code
W953
Shown as
Time for external battery management exceeded
Vendor severity
1
Page
219
ID
fc:sma-sunny-island-us-w953
IRI
https://solarlattice.org/kb/fc/sma-sunny-island-us-w953
Status
active
Also known as
W953, w953, SMA W953, Time for external battery management exceeded
Category
Inverters
Class warning drafted · lead
Production not stated
Clears not stated

Decoded

Reports external battery management timeout.

What can be behind External battery management timeout

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 SI-US F952

Claims

defined_in

c1 drafted · lead SI4548-6048-US-BE-en-21W

has_event_class

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

from the Type column

reports

c3 drafted · lead External battery management timeout

applies_to

c4 drafted · lead Sunny Island 4548-US / 6048-US

Data