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

Canadian Solar 185-255K GRID-INTF01/02

Code
GRID-INTF01/02
Shown as
Grid interference
Page
32
ID
fc:canadian-solar-185-255k-gridintf0102
IRI
https://solarlattice.org/kb/fc/canadian-solar-185-255k-gridintf0102
Status
active
Also known as
GRID-INTF01/02, gridintf0102, Canadian Solar GRID-INTF01/02, Grid interference
Category
Inverters
Class fault verified · fact
Production not stated
Clears after a manual reset drafted · lead

Decoded

Reports grid instability; look at power board; do: inverter restart, power board replacement.

What can be behind Grid instability

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

ABB / FIMER
ABB / FIMER PVS-166-175-TL W003, ABB / FIMER PVS-60-TL W003, ABB / FIMER TRIO-20.0-27.6-TL W003, ABB / FIMER UNO-DM-3.3-5.0-PLUS W003, ABB / FIMER UNO-DM-6.0-PLUS W003
Canadian Solar
Canadian Solar 125K-T600GL02 GRID-INTF, Canadian Solar 125KTL-GS-E GRID-INTF, Canadian Solar 25-40K-T480GL01 GRID-INTF, Canadian Solar 25-40KTL-GS-FL GRID-INTF, Canadian Solar 50-66K-T480GL01 GRID-INTF, Canadian Solar 50-66KTL-GS-FL GRID-INTF, Canadian Solar 75-100K-T480GL02 GRID-INTF
Huawei
Huawei SUN2000-100KTL-USH0 2038
SMA
SMA SB-US-41 404, SMA SBSE-US-50 404, SMA STP-TL-US 404, SMA STP-X-US 404, SMA SC-CP-XT 404
Solis
Solis 1P-4G-US GRID-INTF, Solis 3P-5G-US GRID-INTF01/02, Solis RHI-1P-HV GRID-INTF01/02, Solis S5-GC GRID-INTF, Solis S6-EH1P GRID-INTF01/02, Solis S6-EH2P G-F-GLU, Solis S6-EH2P GRID-INTF, Solis S6-EH2P GRID-INTF02, Solis S6-EH3P30-60K G-F-GLU, Solis S6-EH3P30-60K GRID-INTF, Solis S6-EH3P30-60K GRID-INTF02, Solis S6-EH3P75-150K G-F-GLU, Solis S6-EH3P75-150K GRID-INTF, Solis S6-EH3P75-150K GRID-INTF02, Solis S6-GC GRID-INTF, Solis S6-GU GRID-INTF

Claims

defined_in

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

reports

c2 drafted · lead Grid instability

affects

c3 drafted · lead Power board

mitigated_by

c4 drafted · lead Inverter restart

c5 drafted · lead Power board replacement

has_event_class

c6 verified · fact Fault (device stops or needs intervention)

Troubleshooting entry requiring operator intervention.

verified by: review-workflowverified on: 2026-10-23review note: support check: partial - Row requires intervention (restart, board replacement) implying fault, but the class is not explicitly stated.

has_recovery

c7 drafted · lead Manual reset (operator restarts or acknowledges)

Restart first; power board replacement if it persists.

applies_to

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

Data