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CPS SCH350KTL IntFanErr

Code: IntFanErr
Shown as: cooling fan failure
Page: 94
ID: fc:chint-sch-350ktl-intfanerr
IRI: https://solarlattice.org/kb/fc/chint-sch-350ktl-intfanerr
Status: active
Also known as: IntFanErr, intfanerr, CPS IntFanErr, cooling fan failure
Category: Inverters

Class not stated

Production not stated

Clears by itself drafted · lead

Decoded

Reports fan fault alarm; may indicate fan failure; look at cooling fan; do: clear ventilation blockage, inverter restart, contact manufacturer service.

What can be behind Fan fault alarm

Failure modes that present as the reported condition, and the tests that tell them apart.

Fan failure drafted · lead

Defined in

CPS SCH350KTL-DO-US-800 User Manual Rev 2.2 — CPS (Chint Power Systems) · page 94 drafted · lead
- tbl=33.r4 h=c9dab768e540

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

Same condition on other equipment

ABB / FIMER: ABB / FIMER PVS-60-TL W010, ABB / FIMER TRIO-20.0-27.6-TL W010, ABB / FIMER UNO-DM-3.3-5.0-PLUS W010, ABB / FIMER UNO-DM-6.0-PLUS W010
CPS: CPS SCA25KTL-208 ExtFanErr, CPS SCA25KTL-480 ExtFanErr, CPS SCA25KTL-480 IntFanErr, CPS SCA50-100K-T Warn0000, CPS SCA50-100K-T Warn0010, CPS SCH100-125KTL ExtFanErr, CPS SCH100-125KTL IntFanErr, CPS SCH125KTL-AIO ExtFanErr, CPS SCH200-250K-T ExtFanErr, CPS SCH200-250K-T IntFanErr, CPS SCH275KTL ExtFanErr, CPS SCH275KTL IntFanErr, CPS SCH350KTL ExtFanErr, CPS SCH350KTL Warn0080
Canadian Solar: Canadian Solar 23-28KTL-CT ExtFanErr
Fronius: Fronius Symo 326, Fronius Symo 327
KACO new energy: KACO new energy blueplanet TL3 187, KACO new energy blueplanet TL3 70, KACO new energy blueplanet TL3 71, KACO new energy blueplanet TL3 72
SMA: SMA STP-TL-US 7508, SMA SC-CP-XT 7507
Schneider Electric: Schneider Electric CL125 070
Solis: Solis S6-EH2P Fan Alarm, Solis S6-EH3P30-60K Fan Alarm, Solis S6-EH3P75-150K Fan Alarm
Sungrow: Sungrow SG-CX-US 070
Yaskawa Solectria: Yaskawa Solectria PVI-14-20TL ExtFanErr, Yaskawa Solectria PVI-14-20TL IntFanErr, Yaskawa Solectria PVI-25TL-R IntFanErr, Yaskawa Solectria PVI-TL ExtFanErr, Yaskawa Solectria PVI-TL IntFanErr

Same code in other families

Claims

`defined_in`

c1 drafted · lead CPS SCH350KTL-DO-US-800 User Manual Rev 2.2

CPS SCH350KTL-DO-US-800 User Manual Rev 2.2 tbl=33.r4 h=c9dab768e540

`reports`

c2 drafted · lead Fan fault alarm

CPS 25kW User Manual Rev 2.1 tbl=55.r4 h=6c80e7b1e31d
CPS SCH100-125KTL-DO-US-600-480 User Manual Rev 1.9 tbl=33.r2 h=bd2ced4d1215
CPS SCH200-250K-T-US User Manual Aug 2026 tbl=41.r3 h=b6a4aedbecdc
CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7 tbl=24.r7 h=49943c6ea785
CPS SCH350KTL-DO-US-800 User Manual Rev 2.2 tbl=33.r4 h=c9dab768e540

`indicates`

c3 drafted · lead Fan failure

CPS SCH200-250K-T-US User Manual Aug 2026 tbl=41.r3 h=b6a4aedbecdc
CPS SCH350KTL-DO-US-800 User Manual Rev 2.2 tbl=33.r4 h=c9dab768e540

`affects`

c4 drafted · lead Cooling fan

CPS 25kW User Manual Rev 2.1 tbl=55.r4 h=6c80e7b1e31d
CPS SCH100-125KTL-DO-US-600-480 User Manual Rev 1.9 tbl=33.r2 h=bd2ced4d1215
CPS SCH200-250K-T-US User Manual Aug 2026 tbl=41.r3 h=b6a4aedbecdc
CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7 tbl=24.r7 h=49943c6ea785
CPS SCH350KTL-DO-US-800 User Manual Rev 2.2 tbl=33.r4 h=c9dab768e540

`mitigated_by`

c5 drafted · lead Clear ventilation blockage

CPS 25kW User Manual Rev 2.1 tbl=55.r4 h=6c80e7b1e31d
CPS SCH100-125KTL-DO-US-600-480 User Manual Rev 1.9 tbl=33.r2 h=bd2ced4d1215
CPS SCH200-250K-T-US User Manual Aug 2026 tbl=41.r3 h=b6a4aedbecdc
CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7 tbl=24.r7 h=49943c6ea785

review note: support check: partial - Checking for foreign objects on the fan blades is stated, but 'ventilation blockage' is a looser concept than the fan-blade check.

c6 drafted · lead Inverter restart

CPS 25kW User Manual Rev 2.1 tbl=55.r4 h=6c80e7b1e31d
CPS SCH100-125KTL-DO-US-600-480 User Manual Rev 1.9 tbl=33.r2 h=bd2ced4d1215
CPS SCH200-250K-T-US User Manual Aug 2026 tbl=41.r3 h=b6a4aedbecdc
CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7 tbl=24.r7 h=49943c6ea785

c7 drafted · lead Contact manufacturer service

CPS 25kW User Manual Rev 2.1 tbl=55.r4 h=6c80e7b1e31d
CPS SCH100-125KTL-DO-US-600-480 User Manual Rev 1.9 tbl=33.r2 h=bd2ced4d1215
CPS SCH200-250K-T-US User Manual Aug 2026 tbl=41.r3 h=b6a4aedbecdc
CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7 tbl=24.r7 h=49943c6ea785

`has_recovery`

c8 drafted · lead Auto-reset (clears by itself)

May clear within five minutes; otherwise clear fan debris, reboot, then contact service.

CPS 25kW User Manual Rev 2.1 tbl=55.r4 h=6c80e7b1e31d
CPS SCH100-125KTL-DO-US-600-480 User Manual Rev 1.9 tbl=33.r2 h=bd2ced4d1215
CPS SCH200-250K-T-US User Manual Aug 2026 tbl=41.r3 h=b6a4aedbecdc
CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7 tbl=24.r7 h=49943c6ea785

`applies_to`

c9 drafted · lead CPS SCH350KTL-DO/US-800

CPS SCH350KTL-DO-US-800 User Manual Rev 2.2 tbl=33.r4 h=c9dab768e540

Data