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

SMA SI-US W805

Code: W805
Shown as: Generator operation not possible
Vendor severity: 1
Page: 217
ID: fc:sma-sunny-island-us-w805
IRI: https://solarlattice.org/kb/fc/sma-sunny-island-us-w805
Status: active
Also known as: W805, w805, SMA W805, Generator operation not possible
Category: Inverters

Class warning drafted · lead

Production not stated

Clears not stated

Decoded

Reports operation inhibited; look at backup generator.

What can be behind Operation inhibited

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

Arc fault nuisance trip drafted · lead

Defined in

SI4548-6048-US-BE-en-21W — SMA · page 217 drafted · lead
- tbl=153.r3 h=d7e96c7a21f6

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

Same condition on other equipment

ABB / FIMER: ABB / FIMER PVS-166-175-TL W058, ABB / FIMER PVS-60-TL W058, ABB / FIMER UNO-DM-3.3-5.0-PLUS W058, ABB / FIMER UNO-DM-6.0-PLUS W058
SMA: SMA SB-US-40 8206, SMA SB-US-41 8206, SMA SBSE-US-50 9102, SMA CORE1-US 8206, SMA STP-TL-US 8206, SMA SI-US W804

Claims

`defined_in`

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

SI4548-6048-US-BE-en-21W tbl=153.r3 h=d7e96c7a21f6

`has_event_class`

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

from the Type column

SI4548-6048-US-BE-en-21W tbl=153.r3 h=d7e96c7a21f6

`reports`

c3 verified · fact Operation inhibited

Applies to generator operation mode

SI4548-6048-US-BE-en-21W tbl=153.r3 h=d7e96c7a21f6

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

`affects`

c4 drafted · lead Backup generator

SI4548-6048-US-BE-en-21W tbl=153.r3 h=d7e96c7a21f6

review note: support check: partial - Passage says generator operation not possible but does not state the backup generator component is affected, though implied.

`applies_to`

c5 drafted · lead Sunny Island 4548-US / 6048-US

SI4548-6048-US-BE-en-21W tbl=153.r3 h=d7e96c7a21f6

Data