Solar Lattice

Fault codes › Canadian Solar › CSI 23/28KTL-CT/US-480

Canadian Solar 23-28KTL-CT Arcboard Err

Code
Arcboard Err
Vendor severity
Protection
Page
74
ID
fc:canadian-solar-23-28ktl-ct-arcboarderr
IRI
https://solarlattice.org/kb/fc/canadian-solar-23-28ktl-ct-arcboarderr
Status
active
Also known as
Arcboard Err, arcboarderr, Canadian Solar Arcboard Err
Category
Inverters
Class fault drafted · lead
Production stops drafted · lead
Clears after a manual reset drafted · lead

Decoded

May indicate arc detection board failure; look at arc fault detection board; confirm with visual inspection; do: board connector check.

Defined in

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

Claims

defined_in

c1 drafted · lead CSI 23-28KTL-CT Inverter Installation Manual

has_event_class

c2 drafted · lead Fault (device stops or needs intervention)

from the Type column

indicates

c3 drafted · lead Arc detection board failure

Row names poor contact or damage of the arc board as the cause.

affects

c4 verified · fact Arc fault detection board

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

detected_by

c5 drafted · lead Visual inspection

Check the arc board's condition.

mitigated_by

c6 drafted · lead Board connector check

review note: support check: partial - The row says to check whether the Arcboard is in good condition, which is close to a board check. It…

has_production_effect

c7 drafted · lead Trip (production stops)

The section says the inverter shuts down automatically when a listed fault occurs.

review note: support check: partial - The general section says the inverter shuts down automatically on faults, and the Arcboard row is in that table. The…

has_recovery

c8 drafted · lead Manual reset (operator restarts or acknowledges)

Operator inspects the board and clears the arc fault from the menu; if that fails, contact service.

applies_to

c9 drafted · lead CSI 23/28KTL-CT/US-480

Data