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

Canadian Solar 185-255K OV-DCA-I

Code
OV-DCA-I
Shown as
DC input overcurrent
Page
32
ID
fc:canadian-solar-185-255k-ovdcai
IRI
https://solarlattice.org/kb/fc/canadian-solar-185-255k-ovdcai
Status
active
Also known as
OV-DCA-I, ovdcai, Canadian Solar OV-DCA-I, DC input overcurrent
Category
Inverters
Class fault verified · fact
Production not stated
Clears after a manual reset verified · fact

Decoded

Reports DC overcurrent; look at PV array, power board; do: inverter restart, string isolation, power board replacement.

What can be behind DC overcurrent

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 E001, ABB / FIMER PVS-60-TL E001, ABB / FIMER TRIO-20.0-27.6-TL E001, ABB / FIMER UNO-DM-3.3-5.0-PLUS E001, ABB / FIMER UNO-DM-6.0-PLUS E001
CPS
CPS SCA25KTL-208 PVx Over current, CPS SCA36KTL PVx Over current, CPS SCA50-100K-T Fault4030, CPS SCA50-100K-T PFault0050, CPS SCA50-100K-T Protect0360, CPS SCA50-100K-T Protect0060, CPS SCA50-100K-T Protect0820, CPS SCA50-100K-T Protect0850, CPS SCA50-100K-T Protect0880, CPS SCA50-60KTL PVx Over current, CPS SCH100-125KTL PV Over current, CPS SCH125KTL-AIO PV Over current
Canadian Solar
Canadian Solar 185-255K DC-INTF
Fronius
Fronius Galvo 302, Fronius Primo 302, Fronius Symo 302
SMA
SMA SB-US-40 3801, SMA SB-US-41 3801, SMA SB-US-41 3802, SMA SB-US-41 3805, SMA CORE1-US 3801, SMA CORE1-US 3802, SMA CORE1-US 3803, SMA CORE1-US 3805, SMA CORE1-US 3806, SMA CORE1-US 3807, SMA CORE1-US 3808, SMA STP-TL-US 3801-3802, SMA STP-X-US 6406, SMA STP-X-US 6407, SMA SC-CP-XT 3803
Schneider Electric
Schneider Electric CL125 021, Schneider Electric CL125 040
Solis
Solis 3P-5G-US DC-INTF, Solis 3P-5G-US OV-DCA-I, Solis RHI-1P-HV DC-INTF, Solis RHI-1P-HV OV-DCA-I, Solis S6-EH1P DC-INTF, Solis S6-EH1P OV-DCA-I, Solis S6-EH2P DC-INTF, Solis S6-EH2P OV-DCA-I, Solis S6-EH2P OV-DCB-I, Solis S6-EH3P30-60K DC-INTF, Solis S6-EH3P30-60K OV-DCA-I, Solis S6-EH3P30-60K OV-DCB-I, Solis S6-EH3P75-150K DC-INTF, Solis S6-EH3P75-150K OV-DCA-I, Solis S6-EH3P75-150K OV-DCB-I, Solis S6-GC DC-INTF, Solis S6-GC OV-DCA-I, Solis S6-GC OV-DCB-I, Solis S6-GU DC-INTF, Solis S6-GU OV-DCA-I, Solis S6-GU OV-DCB-I

Claims

defined_in

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

reports

c2 drafted · lead DC overcurrent

affects

c3 drafted · lead PV array

c4 drafted · lead Power board

mitigated_by

c5 drafted · lead Inverter restart

c6 drafted · lead String isolation

c7 drafted · lead Power board replacement

has_event_class

c8 verified · fact Fault (device stops or needs intervention)

verified by: review-workflowverified on: 2026-10-23review note: support check: partial - Row is in a fault message table and implies a fault (overcurrent, intervention needed), but classification isn't explicitly stated for…

has_recovery

c9 verified · fact Manual reset (operator restarts or acknowledges)

Restart first; then isolate the faulty MPPT string, then replace power board.

verified by: review-workflowverified on: 2026-10-23review note: support check: partial - Restart inverter is listed first, then string removal, then power board change; but calling it manual-reset clearing is an inference,…

applies_to

c10 drafted · lead CSI-185K-T600GL02/03-U / CSI-255K-T800GL02/03-U

Data