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

Sungrow SG-CX-US 017

Code
017
Shown as
Grid voltage unbalance
Page
93
ID
fc:sungrow-sg-cx-us-17
IRI
https://solarlattice.org/kb/fc/sungrow-sg-cx-us-17
Status
active
Also known as
017, 17, Sungrow 017, Grid voltage unbalance
Category
Inverters
Class fault verified · fact
Production not stated
Clears by itself drafted · lead

Decoded

Reports phase imbalance; confirm with grid voltage measurement; do: utility company consultation, inverter parameter adjustment.

What can be behind Phase imbalance

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 E032, ABB / FIMER PVS-60-TL E032, ABB / FIMER TRIO-20.0-27.6-TL E032, ABB / FIMER UNO-DM-3.3-5.0-PLUS E032, ABB / FIMER UNO-DM-6.0-PLUS E032
CPS
CPS SCA50-100K-T Protect0250, CPS SCA50-100K-T Protect0270
Huawei
Huawei SUN2000-100KTL-USH0 2035, Huawei SUN2000-25-30KTL-US 301, Huawei SUN2000-45KTL-US-HV-D0 301
KACO new energy
KACO new energy blueplanet TL3 227
Schneider Electric
Schneider Electric CL125 017, Schneider Electric CL125 042
Solis
Solis S6-EH2P G-PHASE, Solis S6-EH3P30-60K G-PHASE, Solis S6-EH3P75-150K G-PHASE, Solis S6-GC G-PHASE, Solis S6-GU G-PHASE
Sungrow
Sungrow SG200HX 017, Sungrow SG250HX 17, Sungrow SG350HX 017

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 Phase imbalance

has_recovery

c4 drafted · lead Auto-reset (clears by itself)

If repeated: measure grid, adjust parameter, then contact service.

detected_by

c5 drafted · lead Grid voltage measurement

review note: support check: partial - The inverter detects unbalanced three-phase voltage, but 'grid voltage measurement' appears only as a manual troubleshooting step, not the detection method.

mitigated_by

c6 drafted · lead Utility company consultation

c7 drafted · lead Inverter parameter adjustment

Only when phase difference is within utility-permitted range.

has_event_class

c8 verified · fact Fault (device stops or needs intervention)

verified by: review-workflowverified on: 2026-10-20review note: support check: partial - The passages show it is a listed fault code in the troubleshooting table, but they give no explicit fault classification.

applies_to

c9 drafted · lead Sungrow SG36/60CX-US

Data