Solar Lattice

Fault codes › Fronius › Fronius Primo 208-240 (3.8-1 to 15.0-1)

Fronius Primo 106

Code
106
Shown as
AC frequency too low
Vendor severity
Class 1
ID
fc:fronius-primo-106
IRI
https://solarlattice.org/kb/fc/fronius-primo-106
Status
active
Also known as
106, Fronius 106, AC frequency too low
Category
Inverters
Class not stated
Production stops drafted · lead
Clears by itself verified · fact

Decoded

Reports grid underfrequency.

What can be behind Grid underfrequency

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 W007, ABB / FIMER PVS-60-TL W007, ABB / FIMER UNO-DM-3.3-5.0-PLUS W007, ABB / FIMER UNO-DM-6.0-PLUS W007
Canadian Solar
Canadian Solar 185-255K UN-G-F01/02
Fronius
Fronius Galvo 106, Fronius Symo 106
Huawei
Huawei SUN2000-100KTL-USH0 2037, Huawei SUN2000-25-30KTL-US 305, Huawei SUN2000-45KTL-US-HV-D0 305
KACO new energy
KACO new energy blueplanet TL3 48
SMA
SMA PEAK3-US 0502, SMA SC-CP-XT 0502, SMA SC-CP-XT 0504, SMA SI-US W323, SMA SI-US W324, SMA SI-US W325, SMA SI-US W326
Schneider Electric
Schneider Electric CL125 009
Solis
Solis 1P-4G-US UN-G-F, Solis 3P-5G-US UN-G-F01/02, Solis RHI-1P-HV UN-G-F01/02, Solis S6-EH1P UN-G-F01/02, Solis S6-EH2P LmtByUnFr, Solis S6-EH2P UN-G-F01, Solis S6-EH2P UN-G-F02, Solis S6-EH3P30-60K LmtByUnFr, Solis S6-EH3P30-60K UN-G-F01, Solis S6-EH3P30-60K UN-G-F02, Solis S6-EH3P75-150K LmtByUnFr, Solis S6-EH3P75-150K UN-G-F01, Solis S6-EH3P75-150K UN-G-F02, Solis S6-GC UN-G-F, Solis S6-GU UN-G-F
Sungrow
Sungrow SG-CX-US 009, Sungrow SG200HX 009, Sungrow SG250HX 9, Sungrow SG350HX 009
Yaskawa Solectria
Yaskawa Solectria SGI-XTM Fac Low, Yaskawa Solectria SGI-XTM Fac Very Low, Yaskawa Solectria XGI-1500-1MW WARN-5, Yaskawa Solectria XGI-1500-1MW WARN-6, Yaskawa Solectria XGI-1500-DCG WARN-5, Yaskawa Solectria XGI-1500-DCG WARN-6, Yaskawa Solectria XGI-1500 WARN-5, Yaskawa Solectria XGI-1500 WARN-6

Same code in other families

Claims

defined_in

c1 drafted · lead fronius-primo-208-240-emanual-status-codes

reports

c2 verified · fact Grid underfrequency

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

has_production_effect

c3 drafted · lead Trip (production stops)

has_recovery

c4 verified · fact Auto-reset (clears by itself)

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

applies_to

c5 drafted · lead Fronius Primo 208-240

Data