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Fault codes › ABB / FIMER › FIMER PVS-166/175-TL-US

ABB / FIMER PVS-166-175-TL W046

Code
W046
Shown as
Grid conn. fault
Vendor severity
Warning
Page
139
ID
fc:abb-pvs-166-175-tl-us-w46
IRI
https://solarlattice.org/kb/fc/abb-pvs-166-175-tl-us-w46
Status
active
Also known as
W046, w46, ABB / FIMER W046, Grid conn. fault
Category
Inverters
Class warning drafted · lead
Production stops drafted · lead
Clears by itself drafted · lead

Decoded

Reports grid connection failure; do: inverter restart.

What can be behind Grid connection failure

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-60-TL W046, ABB / FIMER UNO-DM-3.3-5.0-PLUS W046, ABB / FIMER UNO-DM-6.0-PLUS W046

Same code in other families

Claims

defined_in

c1 drafted · lead FIMER PVS-166-175-TL-US A.2 Product Manual RevE

has_event_class

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

from the code prefix

reports

c3 verified · fact Grid connection failure

Logged after missing grid, input undervoltage, or manual disconnection during connection

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

has_production_effect

c4 drafted · lead Trip (production stops)

review note: support check: partial - Grid connection unsuccessful implies no feed-in, but a trip is not explicitly stated.

has_recovery

c5 drafted · lead Auto-reset (clears by itself)

Retries automatically; if it persists, restart, then contact support

mitigated_by

c6 drafted · lead Inverter restart

Only after repeated automatic connection attempts fail

applies_to

c7 drafted · lead FIMER PVS-166/175-TL-US string inverter

Data