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Fault codes › Canadian Solar › CSI-185K-T600GL02/03-U / CSI-255K-T800GL02/03-U

Canadian Solar 185-255K IG-AD

Code
IG-AD
Shown as
Grid current sampling fail
Page
32
ID
fc:canadian-solar-185-255k-igad
IRI
https://solarlattice.org/kb/fc/canadian-solar-185-255k-igad
Status
active
Also known as
IG-AD, igad, Canadian Solar IG-AD, Grid current sampling fail
Category
Inverters
Class fault drafted · lead
Production not stated
Clears after a manual reset verified · fact

Decoded

Reports measurement signal error; look at current sensor; do: inverter restart, contact system installer.

What can be behind Measurement signal error

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 Galvo 459, Fronius Primo 459, Fronius Symo 458, Fronius Symo 459
SMA
SMA STP-TL-US 7001-7002, SMA SC-CP-XT 6453, SMA SC-CP-XT 6454, SMA SC-CP-XT 6455, SMA SI-US F890, SMA SI-US F891, SMA SI-US F892, SMA SI-US F893
Solis
Solis 3P-5G-US IG-AD, Solis RHI-1P-HV IG-AD, Solis S6-EH1P IG-AD, Solis S6-GC IG-AD, Solis S6-GU IG-AD

Claims

defined_in

c1 drafted · lead CSI Installation Manual 185-255K USA V1.1 20211119

reports

c2 drafted · lead Measurement signal error

affects

c3 drafted · lead Current sensor

mitigated_by

c4 drafted · lead Inverter restart

c5 drafted · lead Contact system installer

has_event_class

c6 drafted · lead Fault (device stops or needs intervention)

review note: support check: partial - Listed in the Fault message table, but the row doesn't state the class explicitly.

has_recovery

c7 verified · fact Manual reset (operator restarts or acknowledges)

Restart first; contact installer if it persists.

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

applies_to

c8 drafted · lead CSI-185K-T600GL02/03-U / CSI-255K-T800GL02/03-U

Data