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Fault codes › Solis › Solis-3P(125-255)K-EHV-5G-US

Solis 3P-5G-US IG-AD

Code
IG-AD
Shown as
Grid current sampling fail
Page
66
ID
fc:solis-3p-5g-us-igad
IRI
https://solarlattice.org/kb/fc/solis-3p-5g-us-igad
Status
active
Also known as
IG-AD, igad, Solis IG-AD, Grid current sampling fail
Category
Inverters
Class fault drafted · lead
Production not stated
Clears after a manual reset drafted · lead

Decoded

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

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

Canadian Solar
Canadian Solar 185-255K IG-AD
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 RHI-1P-HV IG-AD, Solis S6-EH1P IG-AD, Solis S6-GC IG-AD, Solis S6-GU IG-AD

Same code in other families

Claims

defined_in

c1 drafted · lead Solis_Manual_3P(125-255)K_5G_USA_V1.9(20230620)

reports

c2 drafted · lead Measurement signal error

affects

c3 drafted · lead Current sensor

review note: support check: partial - The passages describe grid current sampling failure but do not name a current sensor.

mitigated_by

c4 drafted · lead Inverter restart

c5 verified · fact Contact system installer

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

c6 drafted · lead Inverter replacement

has_event_class

c7 drafted · lead Fault (device stops or needs intervention)

has_recovery

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

Restart first; installer or inverter replacement if it persists.

applies_to

c9 drafted · lead Solis-3P(125-255)K-EHV-5G-US

Data