Sungrow SG125HV/SG125HV-20 Error Codes

32 codes from pages 78–86 of the manual

This is the list of fault codes the Sungrow manual gives for the SG125HV/SG125HV-20 solar inverter. Find your code below and open it for what the manual says about its causes and what to do.

Fault codes from p. 78

CodeWhat it meansPage
009 Grid underfrequency p. 78
010 Grid power outage, AC switch or circuit is disconnected. p. 78
011 Device anomaly p. 78
012 Excessive leakage current p. 78
036 Temperature anomaly p. 81
037 Temperature anomaly p. 81
038 Device anomaly p. 81
039 Low system insulation resistance p. 81
040-042 Device anomaly p. 82
043 Low ambient temperature p. 82
044-046 Device anomaly p. 82
047 PV input configuration abnormal, PV input mode error p. 82
048-050 Device anomaly p. 82
053-056 Device anomaly p. 82
059-060 Device anomaly p. 82
070 Fan alarm p. 82
071 AC-side SPD alarm p. 82
072 DC-side SPD alarm p. 82
076 Device anomaly p. 83
078-081 PVx abnormal p. 83
087 Electric arc detection module abnormal p. 83
088 Electric arc fault p. 84
089 Electric arc detection disabled p. 84
105 Protection self-check failure on grid side p. 84
106 Grounding cable fault p. 84
116-117 Device anomaly p. 84
220-227 PVx abnormal p. 85
448-471 String x reverse connection fault p. 85
532-547 String x reverse connection alarm p. 85
548-563 String x output current anomaly p. 86
564-571 String x reverse connection alarm p. 86
580-587 String x output current anomaly p. 86

Codes and descriptions are taken from the manufacturer’s manual; page numbers link to the PDF. ManualLib is not affiliated with Sungrow. Found a mistake? Report an error.