Fault codes › Fronius › Fronius Primo 208-240 (3.8-1 to 15.0-1)

Fronius Primo 406

Code: 406
Shown as: Defective temperature sensor of power stage set
Vendor severity: Class 4
ID: fc:fronius-primo-406
IRI: https://solarlattice.org/kb/fc/fronius-primo-406
Status: active
Also known as: 406, Fronius 406, Defective temperature sensor of power stage set
Category: Inverters

Class fault verified · fact

Production not stated

Clears not stated

Decoded

May indicate temperature sensor fault; look at temperature sensor.

Defined in

fronius-primo-208-240-emanual-status-codes — Fronius drafted · lead
- tbl=17.r2 h=6927b12a44d6
- sec=h20 h=45088a5d7149

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

Same code in other families

Claims

verified by: review-workflowverified on: 2026-10-23review note: support check: partial - 406 appears in the class 4 list but the passages never state it is a fault; its behavior is blank.

`applies_to`

c5 drafted · lead Fronius Primo 208-240

fronius-primo-208-240-emanual-status-codes tbl=17.r2 h=6927b12a44d6
fronius-primo-208-240-emanual-status-codes sec=h20 h=45088a5d7149

Fronius Primo 406

Decoded

Defined in

Same code in other families

Claims

defined_in

indicates

affects

has_event_class

applies_to

Data

`defined_in`

`indicates`

`affects`

`has_event_class`

`applies_to`