Solis fault codes

Solis-1P(3.6-10)K-4G-US

Code	Shown as	Class	Clears	Reports	Page
AFCI Check FAULT		fault	after a manual reset	Self-test failure	63
ARC-FAULT			after a manual reset	Arc fault detected	63
GRID-INTF	Grid unstable			Grid instability, AC overcurrent	62
INI-FAULT	Ini aliza on Protec on	fault	after a manual reset	Internal device fault	62
NO-GRID				Grid loss	61
OV-BUS	DC BUS voltage is too high			DC bus overvoltage	62
OV-DC	DC voltage is too high			DC overvoltage	61
OV-G-F	Over Grid Frequency			Grid overfrequency	61
OV-G-V	Over Grid Voltage			Grid overvoltage	60
OV-TEM	Temperature Protec on	fault		Inverter overtemperature, High ambient temperature	62
UN-BUS	DC BUS voltage is too low	fault		DC bus undervoltage	62
UN-G-F	Under Grid Frequency			Grid underfrequency	61
UN-G-V	Under Grid Voltage			Grid undervoltage	61
PV ISO-PRO 01/02	Ground Protec on	fault		Low insulation resistance	62

Solis-3P(125-255)K-EHV-5G-US

Code	Shown as	Class	Clears	Reports	Page
12Power-FAULT	12V power supply fault	fault	after a manual reset	Auxiliary supply undervoltage	67
DCInj-Fault	High DC injection current	fault	after a manual reset	High DC injection	67
DC-INTF	DC input overcurrent		after a manual reset	DC overcurrent	66
DSP-B-Fault	Comm. failure between main and slave DSP	fault	after a manual reset	Internal communication failure	67
G-IMP	High grid impedance			High grid impedance	66
IG-AD	Grid current sampling fail	fault	after a manual reset	Measurement signal error	66
IGBT-OV-I	Over IGBT current	fault	after a manual reset	Inverter overcurrent	66
IGFOL-F	Grid current tracking fail		after a manual reset	Grid current tracking failure	66
INI-FAULT	Initialization system fault	fault	after a manual reset	Internal device fault	67
NO-GRID	No grid voltage			Grid loss	66
OV-BUS	Over DC bus voltage			DC bus overvoltage	66
OV-DCA-I	DC input overcurrent	fault	after a manual reset	DC overcurrent	66
OV-G-I	Over grid current		after a manual reset	AC overcurrent	66
OV-TEM	Over Temperature	fault		Inverter overtemperature, High ambient temperature	66
RelayChk-Fail	Relay check fail	fault	after a manual reset		67
Reve-DC	One of the DC string is reversely connected			Reverse polarity, Unbalanced MPPT string connection	67
GRID-INTF01/02	Grid interference		after a manual reset	Grid instability	66
ILeak-PRO 01/02/03/04	Leakage current protection			High leakage current	67
OV-DC01/02/03/04	Over DC voltage			DC overvoltage	66
OV-G-F01/02	Over grid frequency			Grid overfrequency	66
OV-G-V01/02/03/04	Over grid voltage			Grid overvoltage	66
PV ISO-PRO 01/02	PV isolation protection	fault		Low insulation resistance	67
UN-BUS01/02	Under DC bus voltage	fault		DC bus undervoltage	66
UN-G-F01/02	Under grid frequency	fault		Grid underfrequency	66
UN-G-V01/02	Under grid voltage	fault		Grid undervoltage	66

Solis RHI-1P(5-10)K-HVES-5G-US

Code	Shown as	Class	Clears	Reports	Page
12Power-FAULT	12V power supply fault	fault	after a manual reset	Auxiliary supply undervoltage	35
AFCI Check FAULT	AFCI module self check fault	fault	after a manual reset	Self-test failure	34
ARC-FAULT	ARC detected in DC circuit		after a manual reset	Arc fault detected	34
DCInj-Fault	High DC injection current	fault	after a manual reset	High DC injection	34
DC-INTF	DC input overcurrent		after a manual reset	DC overcurrent	34
DSP-B-Fault	Comm. failure between main and slave DSP	fault	after a manual reset	Internal communication failure	34
G-IMP	High grid impedance			High grid impedance	34
IG-AD	Grid current sampling fail	fault	after a manual reset	Measurement signal error	34
IGBT-OV-I	Over IGBT current	fault	after a manual reset	Inverter overcurrent	34
IGFOL-F	Grid current tracking fail		after a manual reset	Grid current tracking failure	34
INI-FAULT	Initialization system fault	fault	after a manual reset	Internal device fault	34
NO-Battery	Unconnected battery			Battery disconnected	34
NO-GRID	No grid voltage			Grid loss	34
OV-BUS	Over DC bus voltage			DC bus overvoltage	34
OV-DCA-I	DC input overcurrent	fault	after a manual reset	DC overcurrent	35
Over-Load	Backup overload fault		after a manual reset	Inverter overload	35
OV-G-I	Over grid current		after a manual reset	AC overcurrent	35
OV-IgTr	AC side transient overcurrent	fault	after a manual reset	AC overcurrent	35
OV-ILLC	LLC hardware overcurrent		after a manual reset	Internal overcurrent or overvoltage	35
OV-TEM	Over Temperature	fault		Inverter overtemperature, High ambient temperature	35
OV-VBackup	Backup overvoltage fault		after a manual reset	Backup output AC overvoltage	35
OV-Vbatt-H	Battery overvoltage hardware fault		after a manual reset	Battery overvoltage	35
RelayChk-Fail	Relay check fail	fault	after a manual reset		35
GRID-INTF01/02	Grid interference		after a manual reset	Grid instability	34
ILeak-PRO 01/02/03/04	leakage current protection			High leakage current	34
OV-DC01/02/03/04	Over DC voltage			DC overvoltage	35
OV-G-F01/02	Over grid frequency			Grid overfrequency	35
OV-G-V01/02/03/04/05	Over grid voltage			Grid overvoltage	35
OV-Vbatt1	The detection of battery overvol tage		after a manual reset	Battery overvoltage	35
PV ISO-PRO 01/02	PV isolation protection	fault		Low insulation resistance	35
UN-BUS01/02	Under DC bus voltage	fault		DC bus undervoltage	35
UN-G-F01/02	Under grid frequency	fault		Grid underfrequency	35
UN-G-V01/02	Under grid voltage	fault		Grid undervoltage	35

Solis S5-GC(75-125)K-US

Code	Shown as	Class	Clears	Reports	Page
ARC-FAULT		fault	after a manual reset	Arc fault detected	71
GRID-INTF	Grid unstable			Grid instability, AC overcurrent	70
INI-FAULT	Initialization Protect ion	fault	after a manual reset	Internal device fault	71
NO-GRID				Grid loss	70
OV-BUS	DC BUS voltage is too high			DC bus overvoltage	70
OV-DC	DC voltage is too high			DC overvoltage	70
OV-G-F	Over Grid Frequency			Grid overfrequency	70
OV-G-V	Over Grid Voltage			Grid overvoltage	69
OV-TEM	Temperature Protect ion	fault		Inverter overtemperature, High ambient temperature	71
Reve-DC				Reverse polarity, Unbalanced MPPT string connection	71
UN-BUS	DC BUS voltage is too low	fault	needs service	DC bus undervoltage	69
UN-G-V	Under Grid Voltage			Grid undervoltage	69
PV ISO-PRO 01/02	Ground Protect ion	fault	after a manual reset	Low insulation resistance	71

Solis S6-EH1P(3.8-11.4)K-H-US

Code	Shown as	Class	Clears	Reports	Page
12Power-FAULT	12V power supply fault	fault	after a manual reset	Auxiliary supply undervoltage	74
AFCI Check FAULT	AFCI module self check fault	fault	after a manual reset	Self-test failure	72
ARC-FAULT	ARC detected in DC circuit		after a manual reset	Arc fault detected	72
DCInj-Fault	High DC injection current	fault	after a manual reset	High DC injection	72
DC-INTF	DC input overcurrent		after a manual reset	DC overcurrent	72
DSP-B-Fault	Comm. failure between main and slave DSP	fault	after a manual reset	Internal communication failure	72
G-IMP	High grid impedance			High grid impedance	72
IG-AD	Grid current sampling fail	fault	after a manual reset	Measurement signal error	72
IGBT-OV-I	Over IGBT current	fault	after a manual reset	Inverter overcurrent	72
IGFOL-F	Grid current tracking fail		after a manual reset	Grid current tracking failure	72
INI-FAULT	Initialization system fault	fault	after a manual reset	Internal device fault	72
NO-Battery	Unconnected battery			Battery disconnected	72
NO-GRID	No grid voltage			Grid loss	72
OV-BUS	Over DC bus voltage			DC bus overvoltage	72
OV-DCA-I	DC input overcurrent	fault	after a manual reset	DC overcurrent	73
Over-Load	Backup overload fault		after a manual reset	Inverter overload	73
OV-G-I	Over grid current		after a manual reset	AC overcurrent	73
OV-IgTr	AC side transient overcurrent	fault	after a manual reset	AC overcurrent	73
OV-ILLC	LLC hardware overcurrent		after a manual reset	Internal overcurrent or overvoltage	73
OV-TEM	Over Temperature	fault		Inverter overtemperature, High ambient temperature	73
OV-VBackup	Backup overvoltage fault		after a manual reset	Backup output AC overvoltage	73
OV-Vbatt-H	Battery overvoltage hardware fault		after a manual reset	Battery overvoltage	73
RelayChk-Fail	Relay check fail	fault	after a manual reset		73
GRID-INTF01/02	Grid interference		after a manual reset	Grid instability	72
ILeak-PRO 01/02/03/04	leakage current protection			High leakage current	72
OV-DC01/02/03/04	Over DC voltage			DC overvoltage	73
OV-G-F01/02	Over grid frequency			Grid overfrequency	73
OV-G-V01/02/03/04/05	Over grid voltage			Grid overvoltage	73
OV-Vbatt1	The detection of battery overvol tage		after a manual reset	Battery overvoltage	73
PV ISO-PRO 01/02	PV isolation protection	fault		Low insulation resistance	73
UN-BUS01/02	Under DC bus voltage	fault		DC bus undervoltage	74
UN-G-F01/02	Under grid frequency	fault		Grid underfrequency	74
UN-G-V01/02	Under grid voltage	fault		Grid undervoltage	74

Solis S6-EH2P(9.6-16)K-SV-YD-L-US

Code	Shown as	Class	Production	Clears	Reports	Page
12Power-FAULT	12V undervoltage failure	fault		after a manual reset	Auxiliary supply undervoltage	96
AFCI-Check	AFCI self-test failure	fault		after a manual reset	Self-test failure	98
ARC-FAULT	AFCI failure			after a manual reset	Arc fault detected	98
BatName-FAIL	Wrong battery brand selection				Configuration error	94
CAN Fail	CAN Fail				Communication loss	94
DCInj-Fault	The current DC component exceeds the limit	fault		after a manual reset	High DC injection	96
DC-INTF	DC hardware overcurrent (1, 2, 3, 4)			after a manual reset	DC overcurrent	94
DSP-B-Fault	The master-slave DSP communication is abnormal	fault		after a manual reset	Internal communication failure	98
Fan Alarm	Fan alarm				Fan fault alarm	94
G-F-GLU	Grid voltage frequency f luctuat ion	fault			Grid instability	97
G-PHASE	Unbalanced grid voltage			after a manual reset	Phase imbalance	97
GRID-INTF	AC hardware overcurrent (abc phase)				Grid instability, AC overcurrent	94
GridToLoad	Grid to load	informational	unaffected			95
IGBT-OV-I	IGBT overcurrent	fault		after a manual reset	Inverter overcurrent	96
IGFOL-F	Grid current tracking failure			after a manual reset	Grid current tracking failure	97
ILeak-Check	Leakage current sensor fai lure	fault		after a manual reset	Self-test failure	96
INI-FAULT	AD zero drift overlink	fault		after a manual reset	Internal device fault	98
LmtByDRM	DRM Function ON		reduced		Remote power limit	95
LmtByEPM	The device's output is under cont rol led		reduced		Remote power limit	95
LmtByFreq	Frequency power limited		reduced	by itself	Grid frequency out of range	95
LmtByTemp	Over temperature power l imi ted		reduced	by itself	Inverter overtemperature	95
LmtByUnFr	Under frequency limit		reduced		Grid underfrequency	95
LmtByVar					Grid overvoltage	95
LmtByVg	The device is in the Volt-Watt mode				Grid overvoltage	95
NO-Battery	Battery is not connected				Battery disconnected	97
NO-GRID	No grid				Grid loss	97
OV-BUS	DC bus overvoltage				DC bus overvoltage	94
OV-BUS-H	Battery overvoltage hardware failure / VBUS	fault			Battery overvoltage, DC bus overvoltage	96
OV-DCA-I	DC 1 average overcurrent	fault		after a manual reset	DC overcurrent	94
OV-DCB-I	DC 2 average overcurrent	fault		after a manual reset	DC overcurrent	94
Over-Load	Load overload fault			after a manual reset	Inverter overload	97
OV-G-I	A phase RMS value overcurrent			after a manual reset	AC overcurrent	94
OV-ILLC	LLC hardware overcurrent			after a manual reset	Internal overcurrent or overvoltage	98
OV-TEM	Module over temperature	fault			Inverter overtemperature, High ambient temperature	96
OV-VBackup	Inverting overvoltage			after a manual reset	Backup output AC overvoltage	97
OV-Vbatt	Battery undervoltage detected				Battery voltage out of range	94
OV-Vbatt-H	Battery overvoltage hardware failure / VBUS			after a manual reset	Battery overvoltage	96
RelayChk-Fail	Relay failure	fault		after a manual reset		96
StandbySynoch	Off grid status to On grid status	informational				95
Surge Alarm	On-site grid surge	fault		after a manual reset	Grid surge	97
UNB-BUS	DC bus unbalanced voltage	fault		after a manual reset	Neutral point voltage imbalance	94
UN-TEM	Low temperature protection	fault		after a manual reset	Inverter undertemperature	96
UN-Vbatt	Battery overvoltage detected			after a manual reset	Battery voltage out of range	94
GRID-INTF02	Power grid disturbance 02	fault			Grid instability	96
ILeak-PRO01	Leakage current failure 01 (30mA)	fault			High leakage current	96
ILeak-PRO02	Leakage current failure 02 (60mA)	fault			High leakage current	96
ILeak-PRO03	Leakage current failure 03 (150mA)	fault			High leakage current	96
ILeak-PRO04	Leakage current failure 04	fault			High leakage current	96
OV-DC01	DC 1 input overvoltage			after a manual reset	DC overvoltage	94
OV-DC02	DC 2 input overvoltage	fault		after a manual reset	DC overvoltage	94
OV-G-F01	Grid frequency exceeds the upper frequency range	fault			Grid overfrequency	97
OV-G-F02	Grid frequency exceeds the upper frequency range	fault			Grid overfrequency	97
OV-G-V01	Grid voltage exceeds the upper voltage range	fault			Grid overvoltage	97
OV-G-V02	Grid transient overvoltage	fault			Grid overvoltage	97
OV-G-V03	Grid transient overvoltage	fault		after a manual reset	Grid overvoltage	97
OV-G-V04	Grid voltage exceeds the upper voltage range	fault			Grid overvoltage	97
OV-G-V05	Grid voltage RMS instanta-neous overvoltage fault	fault			Grid overvoltage	97
PV ISO-PRO01	PV negative ground fault	fault			Ground fault alarm or trip	96
PV ISO-PRO02	PV positive ground fault	fault			Ground fault alarm or trip	96
UN-BUS01	DC bus undervoltage	fault		after a manual reset	DC bus undervoltage	94
UN-BUS02	Abnormal detection of DC bus voltage	fault		after a manual reset	DC bus voltage detection error	94
UN-G-F01	Grid frequency exceeds the lower frequency range	fault			Grid underfrequency	97
UN-G-F02	Grid frequency exceeds the lower frequency range	fault			Grid underfrequency	97
UN-G-V01	Grid voltage exceeds the lower voltage range	fault			Grid undervoltage	97
UN-G-V02	Grid voltage exceeds the lower voltage range	fault			Grid undervoltage	97

Solis S6-EH3P(30-60)K-NV-YD-H-US

Code	Shown as	Class	Production	Clears	Reports	Page
12Power-FAULT	12V undervoltage failure	fault		after a manual reset	Auxiliary supply undervoltage	94
AFCI-Check	AFCI self-test failure	fault		after a manual reset	Self-test failure	95
ARC-FAULT	AFCI failure			after a manual reset	Arc fault detected	95
BatName-FAIL	Wrong battery brand selection				Configuration error	93
CAN Fail	CAN Fail				Communication loss	93
DCInj-Fault	The current DC component exceeds the limit	fault		after a manual reset	High DC injection	94
DC-INTF	DC hardware overcurrent (1, 2, 3, 4)			after a manual reset	DC overcurrent	93
DSP-B-Fault	The master-slave DSP communication is abnormal	fault		after a manual reset	Internal communication failure	95
Fan Alarm	Fan alarm				Fan fault alarm	93
G-F-GLU	Grid voltage frequency f luctuat ion	fault			Grid instability	92
G-PHASE	Unbalanced grid voltage			after a manual reset	Phase imbalance	92
GRID-INTF	AC hardware overcurrent (abc phase)				Grid instability, AC overcurrent	93
GridToLoad	Grid to load	informational	unaffected			91
IGBT-OV-I	IGBT overcurrent	fault		after a manual reset	Inverter overcurrent	94
IGFOL-F	Grid current tracking failure			after a manual reset	Grid current tracking failure	92
ILeak-Check	Leakage current sensor fai lure	fault		after a manual reset	Self-test failure	94
INI-FAULT	AD zero drift overlink	fault		after a manual reset	Internal device fault	95
LmtByDRM	DRM Function ON		reduced		Remote power limit	91
LmtByEPM	The device's output is under cont rol led		reduced		Remote power limit	91
LmtByFreq	Frequency power limited		reduced	by itself	Grid frequency out of range	91
LmtByTemp	Over temperature power l imi ted		reduced	by itself	Inverter overtemperature	91
LmtByUnFr	Under frequency limit		reduced		Grid underfrequency	91
LmtByVar					Grid overvoltage	91
LmtByVg	The device is in the Volt-Watt mode				Grid overvoltage	91
NO-Battery	Battery is not connected				Battery disconnected	92
NO-GRID	No grid				Grid loss	92
OV-BUS	DC bus overvoltage				DC bus overvoltage	93
OV-BUS-H	Battery overvoltage hardware failure / VBUS	fault			Battery overvoltage, DC bus overvoltage	94
OV-DCA-I	DC 1 average overcurrent	fault		after a manual reset	DC overcurrent	93
OV-DCB-I	DC 2 average overcurrent	fault		after a manual reset	DC overcurrent	93
Over-Load	Load overload fault			after a manual reset	Inverter overload	92
OV-G-I	A phase RMS value overcurrent			after a manual reset	AC overcurrent	93
OV-ILLC	LLC hardware overcurrent			after a manual reset	Internal overcurrent or overvoltage	94
OV-TEM	Module over temperature	fault			Inverter overtemperature, High ambient temperature	94
OV-VBackup	Inverting overvoltage			after a manual reset	Backup output AC overvoltage	92
OV-Vbatt	Battery undervoltage detected				Battery voltage out of range	93
OV-Vbatt-H	Battery overvoltage hardware failure / VBUS			after a manual reset	Battery overvoltage	94
RelayChk-Fail	Relay failure	fault		after a manual reset		94
StandbySynoch	Off grid status to On grid status	informational				91
Surge Alarm	On-site grid surge	fault		after a manual reset	Grid surge	92
UNB-BUS	DC bus unbalanced voltage	fault		after a manual reset	Neutral point voltage imbalance	93
UN-TEM	Low temperature protection	fault		after a manual reset	Inverter undertemperature	94
UN-Vbatt	Battery overvoltage detected			after a manual reset	Battery voltage out of range	93
GRID-INTF02	Power grid disturbance 02	fault			Grid instability	94
ILeak-PRO01	Leakage current failure 01 (30mA)	fault			High leakage current	94
ILeak-PRO02	Leakage current failure 02 (60mA)	fault			High leakage current	94
ILeak-PRO03	Leakage current failure 03 (150mA)	fault			High leakage current	94
ILeak-PRO04	Leakage current failure 04	fault			High leakage current	94
OV-DC01	DC 1 input overvoltage			after a manual reset	DC overvoltage	93
OV-DC02	DC 2 input overvoltage	fault		after a manual reset	DC overvoltage	93
OV-G-F01	Grid frequency exceeds the upper frequency range	fault			Grid overfrequency	92
OV-G-F02	Grid frequency exceeds the upper frequency range	fault			Grid overfrequency	92
OV-G-V01	Grid voltage exceeds the upper voltage range	fault			Grid overvoltage	92
OV-G-V02	Grid transient overvoltage	fault			Grid overvoltage	92
OV-G-V03	Grid transient overvoltage	fault		after a manual reset	Grid overvoltage	92
OV-G-V04	Grid voltage exceeds the upper voltage range	fault			Grid overvoltage	92
OV-G-V05	Grid voltage RMS instanta-neous overvoltage fault	fault			Grid overvoltage	92
PV ISO-PRO01	PV negative ground fault	fault			Ground fault alarm or trip	94
PV ISO-PRO02	PV positive ground fault	fault			Ground fault alarm or trip	94
UN-BUS01	DC bus undervoltage	fault		after a manual reset	DC bus undervoltage	93
UN-BUS02	Abnormal detection of DC bus voltage	fault		after a manual reset	DC bus voltage detection error	93
UN-G-F01	Grid frequency exceeds the lower frequency range	fault			Grid underfrequency	92
UN-G-F02	Grid frequency exceeds the lower frequency range	fault			Grid underfrequency	92
UN-G-V01	Grid voltage exceeds the lower voltage range	fault			Grid undervoltage	92
UN-G-V02	Grid voltage exceeds the lower voltage range	fault			Grid undervoltage	92

Solis S6-EH3P(75-150)K10-NV-YD-H-US

Code	Shown as	Class	Production	Clears	Reports	Page
12Power-FAULT	12V undervoltage failure	fault		after a manual reset	Auxiliary supply undervoltage	118
AFCI-Check	AFCI self-test failure	fault		after a manual reset	Self-test failure	118
ARC-FAULT	AFCI failure			after a manual reset	Arc fault detected	118
BatName-FAIL	Wrong battery brand selection				Configuration error	117
CAN Fail	CAN Fail				Communication loss	117
DCInj-Fault	The current DC component exceeds the limit	fault		after a manual reset	High DC injection	117
DC-INTF	DC hardware overcurrent (1, 2, 3, 4)			after a manual reset	DC overcurrent	117
DSP-B-Fault	The primary-secondary DSP communication is abnormal	fault		after a manual reset	Internal communication failure	118
Fan Alarm	Fan alarm				Fan fault alarm	117
G-F-GLU	Grid voltage frequency f luctuat ion	fault			Grid instability	116
G-PHASE	Unbalanced grid voltage			after a manual reset	Phase imbalance	116
GRID-INTF	AC hardware overcurrent (abc phase)				Grid instability, AC overcurrent	117
GridToLoad	Grid to load	informational	unaffected			115
IGBT-OV-I	IGBT overcurrent	fault		after a manual reset	Inverter overcurrent	118
IGFOL-F	Grid current tracking failure			after a manual reset	Grid current tracking failure	116
ILeak-Check	Leakage current sensor fai lure	fault		after a manual reset	Self-test failure	118
INI-FAULT	AD zero drift overlink	fault		after a manual reset	Internal device fault	118
LmtByDRM	DRM Function ON		reduced		Remote power limit	115
LmtByEPM	The device's output is under cont rol led		reduced		Remote power limit	115
LmtByFreq	Frequency power limited		reduced	by itself	Grid frequency out of range	115
LmtByTemp	Over temperature power l imi ted		reduced	by itself	Inverter overtemperature	115
LmtByUnFr	Under frequency limit		reduced		Grid underfrequency	115
LmtByVar					Grid overvoltage	115
LmtByVg	The device is in the Volt-Watt mode				Grid overvoltage	115
NO-Battery	Battery is not connected				Battery disconnected	116
NO-GRID	No grid				Grid loss	116
OV-BUS	DC bus overvoltage				DC bus overvoltage	117
OV-BUS-H	Battery overvoltage hardware failure / VBUS	fault			Battery overvoltage, DC bus overvoltage	118
OV-DCA-I	DC 1 average overcurrent	fault		after a manual reset	DC overcurrent	117
OV-DCB-I	DC 2 average overcurrent	fault		after a manual reset	DC overcurrent	117
Over-Load	Load overload fault			after a manual reset	Inverter overload	116
OV-G-I	A phase RMS value overcurrent			after a manual reset	AC overcurrent	117
OV-ILLC	LLC hardware overcurrent			after a manual reset	Internal overcurrent or overvoltage	118
OV-TEM	Module over temperature	fault			Inverter overtemperature, High ambient temperature	118
OV-VBackup	Inverting overvoltage			after a manual reset	Backup output AC overvoltage	116
OV-Vbatt	Battery overvoltage detected				Battery voltage out of range	117
OV-Vbatt-H	Battery overvoltage hardware failure / VBUS			after a manual reset	Battery overvoltage	118
RelayChk-Fail	Relay failure	fault		after a manual reset		118
StandbySynoch	Off grid status to On grid status	informational				115
Surge Alarm	On-site grid surge	fault		after a manual reset	Grid surge	116
UNB-BUS	DC bus unbalanced voltage	fault		after a manual reset	Neutral point voltage imbalance	117
UN-TEM	Low temperature protection	fault		after a manual reset	Inverter undertemperature	118
UN-Vbatt	Battery undervoltage detected			after a manual reset	Battery voltage out of range	117
GRID-INTF02	Power grid disturbance 02	fault			Grid instability	118
ILeak-PRO01	Leakage current failure 01 (30mA)	fault			High leakage current	118
ILeak-PRO02	Leakage current failure 02 (60mA)	fault			High leakage current	118
ILeak-PRO03	Leakage current failure 03 (150mA)	fault			High leakage current	118
ILeak-PRO04	Leakage current failure 04	fault			High leakage current	118
OV-DC01	DC 1 input overvoltage			after a manual reset	DC overvoltage	117
OV-DC02	DC 2 input overvoltage	fault		after a manual reset	DC overvoltage	117
OV-G-F01	Grid frequency exceeds the upper frequency range	fault			Grid overfrequency	116
OV-G-F02	Grid frequency exceeds the upper frequency range	fault			Grid overfrequency	116
OV-G-V01	Grid voltage exceeds the upper voltage range	fault			Grid overvoltage	116
OV-G-V02	Grid transient overvoltage	fault			Grid overvoltage	116
OV-G-V03	Grid transient overvoltage	fault		after a manual reset	Grid overvoltage	116
OV-G-V04	Grid voltage exceeds the upper voltage range	fault			Grid overvoltage	116
OV-G-V05	Grid voltage RMS instanta-neous overvoltage fault	fault			Grid overvoltage	116
PV ISO-PRO01	PV negative ground fault	fault			Ground fault alarm or trip	118
PV ISO-PRO02	PV positive ground fault	fault			Ground fault alarm or trip	118
UN-BUS01	DC bus undervoltage	fault		after a manual reset	DC bus undervoltage	117
UN-BUS02	Abnormal detection of DC bus voltage	fault		after a manual reset	DC bus voltage detection error	117
UN-G-F01	Grid frequency exceeds the lower frequency range	fault			Grid underfrequency	116
UN-G-F02	Grid frequency exceeds the lower frequency range	fault			Grid underfrequency	116
UN-G-V01	Grid voltage exceeds the lower voltage range	fault			Grid undervoltage	116
UN-G-V02	Grid voltage exceeds the lower voltage range	fault			Grid undervoltage	116

Solis S6-GC(25-60)K-US

Code	Shown as	Class	Clears	Reports	Page
AFCI-Check	AFCI self check protect ion	fault	after a manual reset	Self-test failure	74
ARC-FAULT			after a manual reset	Arc fault detected	72
BoostFal	DC Boost converter fault	fault	after a manual reset		75
DCInj-Fault	Excessive DC component	fault	after a manual reset	High DC injection	74
DC-INTF	DC input disturbance		after a manual reset	DC overcurrent	73
DRM LINK Fail	DRM link failed	fault	after a manual reset	Communication loss	75
DSP-B-Fault	DSP-B internal protect ion	fault	after a manual reset	Internal communication failure	74
DSP-SelfCheck	DSP self-check is abnormal	fault	after a manual reset	Self-test failure	75
G-F-FLU	Grid frequency fluctuat ion		after a manual reset	Grid frequency out of range	73
G-PHASE	Unbalanced Grid		after a manual reset	Phase imbalance	73
GRID-INTF	Grid unstable			Grid instability, AC overcurrent	71
IG-AD	Abnormal grid current sampling	fault	after a manual reset	Measurement signal error	75
IGBT-OV-I	IGBT overcurrent	fault	after a manual reset	Inverter overcurrent	74
IGFOL-F	Grid current tracking is abnormal		after a manual reset	Grid current tracking failure	73
ILeak-Check	Leakage current self check protect ion	fault	after a manual reset	Self-test failure	74
ILeak-PRO	Leakage current protect ion	fault		High leakage current	74
INI-FAULT	Initialization Protect ion	fault	after a manual reset	Internal device fault	72
NO-GRID				Grid loss	71
OV-BUS	DC BUS voltage is too high			DC bus overvoltage	71
OV-DC	DC voltage is too high			DC overvoltage	71
OV-DCA-I	DC1 average overcurrent	fault	after a manual reset	DC overcurrent	75
OV-DCB-I	DC1 average overcurrent	fault	after a manual reset	DC overcurrent	75
OV-G-F	Over Grid Frequency			Grid overfrequency	71
OV-G-I	Grid overcurrent		after a manual reset	AC overcurrent	73
OV-G-V	Over Grid Voltage			Grid overvoltage	70
OV-IgTr	Grid current transient overcurrent	fault	after a manual reset	AC overcurrent	75
OV-TEM	Temperature Protect ion	fault		Inverter overtemperature, High ambient temperature	72
PHASE FAULT	Abnormal phase of the grid	fault	after a manual reset	Abnormal grid phase angle	75
PID Repairing	Inverter logic fault	fault		Internal device fault	73
RelayChk-Fail	Relay detection fai lure	fault	after a manual reset		74
Reve-DC				Reverse polarity, Unbalanced MPPT string connection	72
UN-BUS	DC BUS voltage is too low	fault		DC bus undervoltage	70
UN-G-F	Grid under frequency			Grid underfrequency	73
UN-G-V	Under Grid Voltage			Grid undervoltage	70
UN-TEM	Under temperature protect ion	fault	after a manual reset	Inverter undertemperature	74
PV ISO-PRO 01/02	Ground Protect ion	fault		Low insulation resistance	72

Solis S6-GU(250-350)K-EHV-US

Code	Shown as	Class	Clears	Reports	Page
AFCI-Check	AFCI self check protect ion	fault	after a manual reset	Self-test failure	49
ARC-FAULT			after a manual reset	Arc fault detected	47
BoostFal	DC Boost converter fault	fault	after a manual reset		50
DCInj-Fault	Excessive DC component	fault	after a manual reset	High DC injection	49
DC-INTF	DC input disturbance		after a manual reset	DC overcurrent	48
DRM LINK Fail	DRM link failed	fault	after a manual reset	Communication loss	50
DSP-B-Fault	DSP-B internal protect ion	fault	after a manual reset	Internal communication failure	49
DSP-SelfCheck	DSP self-check is abnormal	fault	after a manual reset	Self-test failure	50
G-F-FLU	Grid frequency fluctuat ion		after a manual reset	Grid frequency out of range	48
G-PHASE	Unbalanced Grid		after a manual reset	Phase imbalance	48
GRID-INTF	Grid unstable			Grid instability, AC overcurrent	46
IG-AD	Abnormal grid current sampling	fault	after a manual reset	Measurement signal error	50
IGBT-OV-I	IGBT overcurrent	fault	after a manual reset	Inverter overcurrent	49
IGFOL-F	Grid current tracking is abnormal		after a manual reset	Grid current tracking failure	48
ILeak-Check	Leakage current self check protect ion	fault	after a manual reset	Self-test failure	49
ILeak-PRO	Leakage current protect ion	fault		High leakage current	49
INI-FAULT	Initialization Protect ion	fault	after a manual reset	Internal device fault	47
NO-GRID				Grid loss	46
OV-BUS	DC BUS voltage is too high			DC bus overvoltage	46
OV-DC	DC voltage is too high			DC overvoltage	46
OV-DCA-I	DC1 average overcurrent	fault	after a manual reset	DC overcurrent	50
OV-DCB-I	DC1 average overcurrent	fault	after a manual reset	DC overcurrent	50
OV-G-F	Over Grid Frequency			Grid overfrequency	46
OV-G-I	Grid overcurrent		after a manual reset	AC overcurrent	48
OV-G-V	Over Grid Voltage			Grid overvoltage	45
OV-IgTr	Grid current transient overcurrent	fault	after a manual reset	AC overcurrent	50
OV-TEM	Temperature Protect ion	fault		Inverter overtemperature, High ambient temperature	47
PHASE FAULT	Abnormal phase of the grid	fault	after a manual reset	Abnormal grid phase angle	50
PID Repairing	Inverter logic fault	fault		Internal device fault	48
RelayChk-Fail	Relay detection fai lure	fault	after a manual reset		49
Reve-DC				Reverse polarity, Unbalanced MPPT string connection	47
UN-BUS	DC BUS voltage is too low	fault		DC bus undervoltage	45
UN-G-F	Grid under frequency			Grid underfrequency	48
UN-G-V	Under Grid Voltage			Grid undervoltage	45
UN-TEM	Under temperature protect ion	fault	after a manual reset	Inverter undertemperature	49
PV ISO-PRO 01/02	Ground Protect ion	fault		Low insulation resistance	47

Codes are sorted by vendor prefix and number. Each row links to the code's record; concepts link to their reading rule.