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Fault codes › ABB / FIMER › UNO-DM-3.3/3.8/4.6/5.0-TL-PLUS-US

ABB / FIMER UNO-DM-3.3-5.0-PLUS W003

Code
W003
Shown as
Grid Fail
Vendor severity
Warning
Page
126
ID
fc:abb-uno-dm-3-3-5-0-plus-us-w3
IRI
https://solarlattice.org/kb/fc/abb-uno-dm-3-3-5-0-plus-us-w3
Status
active
Also known as
W003, w3, ABB / FIMER W003, Grid Fail
Category
Inverters
Class warning drafted · lead
Production not stated
Clears not stated

Decoded

Reports grid parameters out of range, grid instability; confirm with grid voltage measurement; do: utility company consultation, AC connection check.

What can be behind Grid parameters out of range

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

What can be behind Grid instability

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

ABB / FIMER
ABB / FIMER PVS-166-175-TL W003, ABB / FIMER PVS-60-TL W003, ABB / FIMER TRIO-20.0-27.6-TL W003, ABB / FIMER UNO-DM-6.0-PLUS W003
Canadian Solar
Canadian Solar 125K-T600GL02 GRID-INTF, Canadian Solar 125KTL-GS-E GRID-INTF, Canadian Solar 185-255K GRID-INTF01/02, Canadian Solar 25-40K-T480GL01 GRID-INTF, Canadian Solar 25-40KTL-GS-FL GRID-INTF, Canadian Solar 50-66K-T480GL01 GRID-INTF, Canadian Solar 50-66KTL-GS-FL GRID-INTF, Canadian Solar 75-100K-T480GL02 GRID-INTF
Huawei
Huawei SUN2000-100KTL-USH0 2038
KACO new energy
KACO new energy blueplanet TL3 17
SMA
SMA SB-US-41 404, SMA SBSE-US-50 404, SMA STP-TL-US 404, SMA STP-X-US 404, SMA SC-CP-XT 404
Solis
Solis 1P-4G-US GRID-INTF, Solis 3P-5G-US GRID-INTF01/02, Solis RHI-1P-HV GRID-INTF01/02, Solis S5-GC GRID-INTF, Solis S6-EH1P GRID-INTF01/02, Solis S6-EH2P G-F-GLU, Solis S6-EH2P GRID-INTF, Solis S6-EH2P GRID-INTF02, Solis S6-EH3P30-60K G-F-GLU, Solis S6-EH3P30-60K GRID-INTF, Solis S6-EH3P30-60K GRID-INTF02, Solis S6-EH3P75-150K G-F-GLU, Solis S6-EH3P75-150K GRID-INTF, Solis S6-EH3P75-150K GRID-INTF02, Solis S6-GC GRID-INTF, Solis S6-GU GRID-INTF

Same code in other families

Claims

defined_in

c1 drafted · lead FIMER UNO-DM-3.3-5.0-TL-PLUS-US-Q Product Manual RevB

c2 drafted · lead UNO-DM-3.3-5.0-TL-PLUS-US Product Manual RevA

has_event_class

c3 drafted · lead Warning (device continues, a condition is flagged)

from the code prefix

reports

c4 drafted · lead Grid parameters out of range

c5 verified · fact Grid instability

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

detected_by

c6 drafted · lead Grid voltage measurement

mitigated_by

c7 drafted · lead Utility company consultation

When high grid impedance raises voltage; limits changed only with operator authorisation

c8 drafted · lead AC connection check

When supply-point voltage is much lower than at the inverter

applies_to

c9 drafted · lead UNO-DM-3.3/3.8/4.6/5.0-TL-PLUS-US string inverter

Data