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Fault codes › Sungrow › Sungrow SG36/60CX-US

Sungrow SG-CX-US 037

Code
037
Shown as
Temperature anomaly
Page
94
ID
fc:sungrow-sg-cx-us-37
IRI
https://solarlattice.org/kb/fc/sungrow-sg-cx-us-37
Status
active
Also known as
037, 37, Sungrow 037, Temperature anomaly
Category
Inverters
Class fault drafted · lead
Production stops drafted · lead
Clears by itself verified · fact

Decoded

Reports inverter overtemperature; look at cooling fan; confirm with fan function check; do: direct sunlight avoidance, clear ventilation blockage, adequate inverter cooling, fan replacement.

What can be behind Inverter overtemperature

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 E014, ABB / FIMER PVS-60-TL CODE:05, ABB / FIMER PVS-60-TL E014, ABB / FIMER PVS-60-TL E056, ABB / FIMER TRIO-20.0-27.6-TL CODE:05, ABB / FIMER TRIO-20.0-27.6-TL E014, ABB / FIMER TRIO-20.0-27.6-TL E056, ABB / FIMER UNO-DM-3.3-5.0-PLUS CODE:05, ABB / FIMER UNO-DM-3.3-5.0-PLUS E014, ABB / FIMER UNO-DM-3.3-5.0-PLUS E056, ABB / FIMER UNO-DM-6.0-PLUS CODE:05, ABB / FIMER UNO-DM-6.0-PLUS E014, ABB / FIMER UNO-DM-6.0-PLUS E056
CPS
CPS SCA25KTL-208 TempOver, CPS SCA25KTL-480 TempOver, CPS SCA36KTL TempOver, CPS SCA50-100K-T Fault6030, CPS SCA50-100K-T Fault6040, CPS SCA50-100K-T Protect0140, CPS SCA50-60KTL TempOver, CPS SCH100-125KTL TempOver, CPS SCH125KTL-AIO TempOver, CPS SCH200-250K-T TempOver, CPS SCH275KTL TempOver, CPS SCH350KTL TempOver
Canadian Solar
Canadian Solar 185-255K OV-TEM, Canadian Solar 23-28KTL-CT TempOver, Canadian Solar 25-40K-T480GL01 OV-TEM, Canadian Solar 50-66K-T480GL01 OV-TEM, Canadian Solar 75-100K-T480GL02 OV-TEM
Fronius
Fronius Galvo 303, Fronius Galvo 304, Fronius Galvo 517, Fronius Primo 303, Fronius Primo 517, Fronius Symo 303, Fronius Symo 304, Fronius Symo 325, Fronius Symo 517
Huawei
Huawei SUN2000-100KTL-USH0 2063, Huawei SUN2000-25-30KTL-US 321, Huawei SUN2000-45KTL-US-HV-D0 321
KACO new energy
KACO new energy blueplanet TL3 10, KACO new energy blueplanet TL3 100, KACO new energy blueplanet TL3 11, KACO new energy blueplanet TL3 158, KACO new energy blueplanet TL3 58
SMA
SMA SB-US-40 8003, SMA SB-US-41 8003, SMA SBSE-US-50 6501, SMA SBSE-US-50 6502, SMA SBSE-US-50 6509, SMA SBSE-US-50 6511, SMA SBSE-US-50 8003, SMA PEAK3-US 6501, SMA PEAK3-US 6511, SMA PEAK3-US 8003, SMA CORE1-US 6502, SMA CORE1-US 8003, SMA STP-TL-US 6501-6511, SMA STP-TL-US 8001, SMA STP-X-US 6501, SMA STP-X-US 6511, SMA SC-CP-XT 6418, SMA SC-CP-XT 6423, SMA SC-CP-XT 6501, SMA SC-CP-XT 6502, SMA SC-CP-XT 6605, SMA SI-US F113, SMA SI-US W110, SMA SI-US W111, SMA SI-US W112, SMA SI-US W114, SMA SI-US W115, SMA SI-US W116, SMA SI-US W137, SMA SI-US W138, SMA SI-US W139, SMA SI-US W140
Schneider Electric
Schneider Electric CL125 036, Schneider Electric CL125 037
Solis
Solis 1P-4G-US OV-TEM, Solis 3P-5G-US OV-TEM, Solis RHI-1P-HV OV-TEM, Solis S5-GC OV-TEM, Solis S6-EH1P OV-TEM, Solis S6-EH2P LmtByTemp, Solis S6-EH2P OV-TEM, Solis S6-EH3P30-60K LmtByTemp, Solis S6-EH3P30-60K OV-TEM, Solis S6-EH3P75-150K LmtByTemp, Solis S6-EH3P75-150K OV-TEM, Solis S6-GC OV-TEM, Solis S6-GU OV-TEM
Sungrow
Sungrow SG-CX-US 036, Sungrow SG200HX 036, Sungrow SG200HX 037, Sungrow SG250HX 36, Sungrow SG250HX 37, Sungrow SG350HX 036, Sungrow SG350HX 037
Yaskawa Solectria
Yaskawa Solectria PVI-14-20TL OverTemp, Yaskawa Solectria PVI-25TL-R TempOver, Yaskawa Solectria PVI-TL OverTemp, Yaskawa Solectria SGI-XTM IGBT Overtemp, Yaskawa Solectria SGI-XTM Temp 1 Limiting, Yaskawa Solectria SGI-XTM Temp 2 Limiting, Yaskawa Solectria SGI-XTM Temp 3 Limiting, Yaskawa Solectria XGI-1500-1MW CRIT-6, Yaskawa Solectria XGI-1500-1MW INFO-1, Yaskawa Solectria XGI-1500 CRIT-6, Yaskawa Solectria XGI-1500-DCG CRIT-6, Yaskawa Solectria XGI-1500-DCG INFO-1, Yaskawa Solectria XGI-1500 INFO-1

Same code in other families

Claims

defined_in

c1 drafted · lead Sungrow 36 60CX-US IOM

c2 drafted · lead Sungrow SG36_60CX-US User Manual Ver17 202411

reports

c3 drafted · lead Inverter overtemperature

Internal or ambient temperature beyond safe range.

has_event_class

c4 drafted · lead Fault (device stops or needs intervention)

review note: support check: partial - The passages describe a temperature anomaly with the inverter resuming operation afterward, which implies a stop, but 'fault' is not…

has_production_effect

c5 drafted · lead Trip (production stops)

review note: support check: partial - 'Resume operation' implies operation had stopped, but the passage doesn't explicitly say production stops.

has_recovery

c6 verified · fact Auto-reset (clears by itself)

Resumes when temperature normalizes; persistent cases need checks then service.

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

mitigated_by

c7 drafted · lead Direct sunlight avoidance

c8 drafted · lead Clear ventilation blockage

c9 drafted · lead Adequate inverter cooling

c10 drafted · lead Fan replacement

When the fan is not running properly or a fan alarm exists.

detected_by

c11 drafted · lead Fan function check

affects

c12 drafted · lead Cooling fan

applies_to

c13 drafted · lead Sungrow SG36/60CX-US

Data