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Fault codes › SMA › Sunny Island 4548-US / 6048-US

SMA SI-US W137

Code
W137
Shown as
Derating due to temperature (heat sink or transformer)
Vendor severity
1
Page
210
ID
fc:sma-sunny-island-us-w137
IRI
https://solarlattice.org/kb/fc/sma-sunny-island-us-w137
Status
active
Also known as
W137, w137, SMA W137, Derating due to temperature (heat sink or transformer)
Category
Inverters
Class warning drafted · lead
Production reduced drafted · lead
Clears not stated

Decoded

Reports inverter power derating, inverter overtemperature; look at heat sink, inverter transformer.

What can be behind Inverter power derating

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

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-166-175-TL W021, ABB / FIMER PVS-60-TL CODE:05, ABB / FIMER PVS-60-TL E014, ABB / FIMER PVS-60-TL E056, ABB / FIMER PVS-60-TL W021, 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 Galvo 766, Fronius Primo 303, Fronius Primo 517, Fronius Primo 766, Fronius Symo 303, Fronius Symo 304, Fronius Symo 325, Fronius Symo 517, Fronius Symo 572, Fronius Symo 766
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 129, KACO new energy blueplanet TL3 158, KACO new energy blueplanet TL3 20, KACO new energy blueplanet TL3 58, KACO new energy blueplanet TL3 64
SMA
SMA SB-US-40 8003, SMA SB-US-41 8003, SMA SB-US-41 8006, 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 10502, 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 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 SG-CX-US 037, 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 Current Limit, Yaskawa Solectria SGI-XTM IGBT Overtemp, Yaskawa Solectria SGI-XTM Power Derated, 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

Claims

defined_in

c1 drafted · lead SI4548-6048-US-BE-en-21W

has_event_class

c2 drafted · lead Warning (device continues, a condition is flagged)

from the Type column

reports

c3 drafted · lead Inverter power derating

c4 drafted · lead Inverter overtemperature

review note: review: partial - The row says 'Derating due to temperature (heat sink or transformer)', which implies elevated temperature but never states an overtemperature condition.

affects

c5 verified · fact Heat sink

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

c6 drafted · lead Inverter transformer

has_production_effect

c7 drafted · lead Derate (output reduced or limited)

No reduced-output value is given.

applies_to

c8 drafted · lead Sunny Island 4548-US / 6048-US

Data