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Fault codes › Fronius › Fronius Symo UL (10.0-3 to 24.0-3 208-240/480)

Fronius Symo 102

Code
102
Shown as
AC voltage too high
Vendor severity
Class 1
ID
fc:fronius-symo-102
IRI
https://solarlattice.org/kb/fc/fronius-symo-102
Status
active
Also known as
102, Fronius 102, AC voltage too high
Category
Inverters
Class fault verified · fact
Production stops drafted · lead
Clears by itself drafted · lead

Decoded

Reports grid overvoltage; do: AC connection check.

What can be behind Grid overvoltage

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 E036, ABB / FIMER PVS-166-175-TL W004, ABB / FIMER PVS-60-TL CODE:02, ABB / FIMER PVS-60-TL E036, ABB / FIMER PVS-60-TL W004, ABB / FIMER TRIO-20.0-27.6-TL CODE:02, ABB / FIMER TRIO-20.0-27.6-TL E036, ABB / FIMER UNO-DM-3.3-5.0-PLUS CODE:02, ABB / FIMER UNO-DM-3.3-5.0-PLUS E036, ABB / FIMER UNO-DM-3.3-5.0-PLUS W004, ABB / FIMER UNO-DM-6.0-PLUS CODE:02, ABB / FIMER UNO-DM-6.0-PLUS E036, ABB / FIMER UNO-DM-6.0-PLUS W004
Canadian Solar
Canadian Solar 125K-T600GL02 OV-G-V, Canadian Solar 125KTL-GS-E OV-G-V, Canadian Solar 25-40K-T480GL01 OV-G-V, Canadian Solar 25-40KTL-GS-FL OV-G-V, Canadian Solar 50-66K-T480GL01 OV-G-V, Canadian Solar 50-66KTL-GS-FL OV-G-V, Canadian Solar 75-100K-T480GL02 OV-G-V
Fronius
Fronius Galvo 102, Fronius Galvo 212, Fronius Galvo 222, Fronius Primo 102, Fronius Symo 212, Fronius Symo 222, Fronius Symo 232
Huawei
Huawei SUN2000-100KTL-USH0 2034, Huawei SUN2000-25-30KTL-US 301, Huawei SUN2000-45KTL-US-HV-D0 301
KACO new energy
KACO new energy blueplanet TL3 108, KACO new energy blueplanet TL3 109, KACO new energy blueplanet TL3 110, KACO new energy blueplanet TL3 203, KACO new energy blueplanet TL3 204, KACO new energy blueplanet TL3 205, KACO new energy blueplanet TL3 35, KACO new energy blueplanet TL3 42, KACO new energy blueplanet TL3 44, KACO new energy blueplanet TL3 46, KACO new energy blueplanet TL3 50, KACO new energy blueplanet TL3 81, KACO new energy blueplanet TL3 82, KACO new energy blueplanet TL3 83
SMA
SMA SB-US-40 101-105, SMA SB-US-41 101, SMA SB-US-41 102, SMA SB-US-41 0103, SMA SB-US-41 105, SMA SB-US-41 301, SMA SBSE-US-50 101, SMA SBSE-US-50 102, SMA SBSE-US-50 0103, SMA SBSE-US-50 105, SMA SBSE-US-50 301, SMA SBSE-US-50 302, SMA SBSE-US-50 6602, SMA PEAK3-US 6128, SMA CORE1-US 101, SMA CORE1-US 301, SMA STP-TL-US 101-103, SMA STP-TL-US 301, SMA STP-X-US 101, SMA STP-X-US 102, SMA STP-X-US 0103, SMA STP-X-US 105, SMA STP-X-US 301, SMA STP-X-US 302, SMA STP-X-US 6602, SMA SC-CP-XT 0103, SMA SC-CP-XT 0104, SMA SC-CP-XT 6128, SMA SI-US W319, SMA SI-US W320, SMA SI-US W321, SMA SI-US W322, SMA SI-US W339, SMA SI-US W340, SMA SI-US W341, SMA SI-US W342
Schneider Electric
Schneider Electric CL125 014, Schneider Electric CL125 002
Solis
Solis 1P-4G-US OV-G-V, Solis 3P-5G-US OV-G-V01/02/03/04, Solis RHI-1P-HV OV-G-V01/02/03/04/05, Solis S5-GC OV-G-V, Solis S6-EH1P OV-G-V01/02/03/04/05, Solis S6-EH2P LmtByVar, Solis S6-EH2P LmtByVg, Solis S6-EH2P OV-G-V01, Solis S6-EH2P OV-G-V02, Solis S6-EH2P OV-G-V03, Solis S6-EH2P OV-G-V04, Solis S6-EH2P OV-G-V05, Solis S6-EH3P30-60K LmtByVar, Solis S6-EH3P30-60K LmtByVg, Solis S6-EH3P30-60K OV-G-V01, Solis S6-EH3P30-60K OV-G-V02, Solis S6-EH3P30-60K OV-G-V03, Solis S6-EH3P30-60K OV-G-V04, Solis S6-EH3P30-60K OV-G-V05, Solis S6-EH3P75-150K LmtByVar, Solis S6-EH3P75-150K LmtByVg, Solis S6-EH3P75-150K OV-G-V01, Solis S6-EH3P75-150K OV-G-V02, Solis S6-EH3P75-150K OV-G-V03, Solis S6-EH3P75-150K OV-G-V04, Solis S6-EH3P75-150K OV-G-V05, Solis S6-GC OV-G-V, Solis S6-GU OV-G-V
Sungrow
Sungrow SG-CX-US 014, Sungrow SG-CX-US 015, Sungrow SG-CX-US 002, Sungrow SG-CX-US 003, Sungrow SG200HX 014, Sungrow SG200HX 015, Sungrow SG200HX 002, Sungrow SG200HX 003, Sungrow SG250HX 14, Sungrow SG250HX 15, Sungrow SG250HX 2, Sungrow SG250HX 3, Sungrow SG350HX 014, Sungrow SG350HX 015, Sungrow SG350HX 002, Sungrow SG350HX 003
Yaskawa Solectria
Yaskawa Solectria SGI-XTM Vac High, Yaskawa Solectria SGI-XTM Vac Very High, Yaskawa Solectria XGI-1500-1MW WARN-12, Yaskawa Solectria XGI-1500-1MW WARN-13, Yaskawa Solectria XGI-1500-DCG WARN-12, Yaskawa Solectria XGI-1500-DCG WARN-13, Yaskawa Solectria XGI-1500 WARN-12, Yaskawa Solectria XGI-1500 WARN-13

Same code in other families

Claims

defined_in

c1 drafted · lead fronius-symo-ul-emanual-status-codes

reports

c2 drafted · lead Grid overvoltage

has_event_class

c3 verified · fact Fault (device stops or needs intervention)

Grid-side protection event; inverter stops feeding, no device defect implied.

verified by: review-workflowverified on: 2026-10-23review note: support check: partial - Passages say the inverter disconnects and no device fault occurs, but they never class 102 as a 'fault'. Class 1…

has_production_effect

c4 drafted · lead Trip (production stops)

Disconnects from grid; soft start ramp may follow reconnection, stated as a curve or ramp, not a single value.

has_recovery

c5 drafted · lead Auto-reset (clears by itself)

Resumes once grid back in range; installer contact only if recurring.

mitigated_by

c6 drafted · lead AC connection check

Escalate to installer if the code keeps recurring.

applies_to

c7 drafted · lead Fronius Symo

Data