Solar Lattice

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

SMA SI-US W161

Code
W161
Shown as
Voltage on output AC1 slave 3
Vendor severity
1
Page
210
ID
fc:sma-sunny-island-us-w161
IRI
https://solarlattice.org/kb/fc/sma-sunny-island-us-w161
Status
active
Also known as
W161, w161, SMA W161, Voltage on output AC1 slave 3
Category
Inverters
Class warning drafted · lead
Production not stated
Clears not stated

Decoded

Reports voltage on AC output.

What can be behind Voltage on AC output

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 F158, SMA SI-US W159, SMA SI-US W160

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 verified · fact Voltage on AC output

Reported for slave 3

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

applies_to

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

Data