Solar Lattice

Fault codes › Fronius › Fronius Symo UL (10.0-3 to 24.0-3 208-240/480)

Fronius Symo 476

Code
476
Shown as
Supply voltage for driver too low
Vendor severity
Class 4
ID
fc:fronius-symo-476
IRI
https://solarlattice.org/kb/fc/fronius-symo-476
Status
active
Also known as
476, Fronius 476, Supply voltage for driver too low
Category
Inverters
Class fault drafted · lead
Production not stated
Clears not stated

Decoded

Reports driver supply undervoltage.

What can be behind Driver supply undervoltage

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

Fronius
Fronius Primo 476
KACO new energy
KACO new energy blueplanet TL3 195

Same code in other families

Claims

defined_in

c1 drafted · lead fronius-symo-ul-emanual-status-codes

reports

c2 verified · fact Driver supply undervoltage

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

has_event_class

c3 drafted · lead Fault (device stops or needs intervention)

review note: support check: partial - u30 doesn't state class; u4 is generic Class 4 text not tying 476 to it, and fault is only loosely implied.

applies_to

c4 drafted · lead Fronius Symo

Data