FoxESS
Setup guides, fault codes and troubleshooting references for FoxESS inverters and batteries.
FoxESS error codes
- 1030 AC Overcurrent (en)
- 1034 DC Component Current Fault (en)
- 1035 High Leakage Current Fault (en)
- 1036 Static Leakage Current Fault (en)
- 1040 Unbalanced Grid Voltage (en)
- 1042 Grid Frequency High (en)
- 1044 Grid Phase Voltage Over Limit (en)
- 1045 Grid Line Voltage Over Limit (en)
- 1046 Unbalanced Inverter Current (en)
- 1048 High DC Component Voltage When Off-grid (en)
- 1050 Inverter Hardware Overcurrent (en)
- 1051 Grid Phase Drop Fault (en)
- 1057 Bus Transient Overvoltage (en)
- 1070 Bus Differential High Fault (en)
- 1071 Bus Hardware Overvoltage (en)
- 1084 Balancing Bridge Hardware Overcurrent (en)
- 1085 DC Input MPPT1 Access Fault (en)
- 1086 DC Input MPPT2 Access Fault (en)
- 1088 DC Input MPPT3 Access Fault (en)
- 1091 Off grid command conflict (en)
- 1092 INV Relay Fault (en)
- 1093 EPS Relay Fault (en)
- 1095 ESTOP Trigger (en)
- 1099 Overtemperature Protection (en)
- 1102 Inverter Current DC Component Offset Fault (en)
- 1103 Inverter Current Offset Fault (en)
- 1106 Inverter Soft Start Timeout Fault (en)
- 1107 BUS Soft Start Fault (en)
- 1108 Abnormal Frequency Detection Value (en)
- 1109 Leak Current CT Self-checking Fault (en)
- 1112 Internal Control Diagnosis Fault (en)
- 1115 Balancing Bridge Current Sampling Channel Fault (en)
- 1116 Ground Impedance Fault (en)
- 1123 Grid Relay Fault (en)
- 1124 Low Insulation Impedance Fault (en)
- 1125 Ground Relay Fault (en)
- 1129 INV Open-loop Self-checking fault (en)
- 1132 INV Frequency Fault Under Off-grid (en)
- 1136 Load Overpower Fault (en)
- 1137 INV Low Voltage Fault Under Off-grid (en)
- 1138 Redundant Detection Fault of Grid Voltage for Auxiliary DSP (en)
- 1139 Redundant Detection Fault of Grid Frequency for Auxiliary DSP (en)
- 1141 Redundant Detection Fault of Leak Current for Auxiliary DSP (en)
- 1145 Arc Fault (en)
- 1149 INV High Voltage Fault Under Off-grid (en)
- 1154 INV Overcurrent Permanent Fault (en)
- 1157 Relay Permanent Fault (en)
- 1160 INV SelfCheck Permanent Fault (en)
- 1163 Balancing Bridge Overcurrent Permanent Fault (en)
- 1173 Internal Control Diagnosis Permanent Fault (en)
- 1174 BUS Hardware Overvoltage Permanent Fault (en)
- 1176 BST Hardware Overcurrent Permanent Fault (en)
- 1177 Static Leak Current Permanent Fault (en)
- 1178 BUS Overvoltage Permanent Fault (en)
- 1179 High BUS Voltage Imbalance Permanent Fault (en)
- 1181 Arc Permanent Fault (en)
- 1182 BDC Overcurrent Permanent Fault (en)
- 1185 Abnormal Grid Startup Voltage (en)
- 1186 Off-grid Running Alarm (en)
- 1188 AC Lightening Protector Anomaly (en)
- 1189 DC Lightening Protector Anomaly (en)
- 1190 Temperature Sensor Alarm (en)
- 1191 External Fan Alarm (en)
- 1192 Internal Fan Alarm (en)
- 1193 EEPROM Write-read Alarm (en)
- 1194 Slave/Sub to Master/Main Communication Alarm (en)
- 1195 Grid Phase Change Alarm (en)
- 1220 BDC Over Current Fault (en)
- 1223 BDC Hardware Overcurrent Fault (en)
- 1224 BDC3 Current Sampling Channel Fault (en)
- 1229 BDC Overtemperature Fault (en)
- 1237 BDC1 Current Sampling Channel Fault (en)
- 1238 BDC2 Current Sampling Channel Fault (en)
- 1241 BDC Soft Start Fault (en)
- 1243 BDC transient Overvoltage Fault (en)
- 1244 BDC Average Overvoltage Fault (en)
- 1249 External Communication Error (Battery) (en)
- 1250 Internal Communication Error (Battery) (en)
- 1251 Overvoltage Protection (Battery) (en)
- 1252 Undervoltage Protection (Battery) (en)
- 1253 Charging Overcurrent Protection (Battery) (en)
- 1254 Discharging Overcurrent Protection (Battery) (en)
- 1255 Cell Overtemperature Protection (en)
- 1256 Cell Undertemperature Protection (en)
- 1257 BMS Cell Imbalance (en)
- 1258 Hardware Protection (Battery) (en)
- 1259 Circuit Fault (Battery) (en)
- 1261 Voltage Sensor Fault (Battery) (en)
- 1262 Temperature Sensor Fault (Battery) (en)
- 1263 Current Sensor Fault (Battery) (en)
- 1264 Relay Fault (Battery) (en)
- 1281 Communication Fault between Communication Board and Main DSP (en)
- 1282 Communication Fault between Communication Board and Auxiliary DSP (en)
- 1283 Communication Fault between Communication Board and BMS (en)
- 1284 Communication Fault between Communication Board and Built-in Meter (en)
- 1285 Communication Fault between Communication Board and Grid Meter (en)
- 1286 Communication Board Flash Writing Fault (en)
- 1287 RTC Read-Write Fault (en)
- 1288 Communication Fault between Communication Board and HUB Board (en)
- 1289 Solar Meter Communication Fault (en)
- 1290 GEN Meter Communication Fault (en)
- 1291 Communication Fault between the Master and slave (en)
- 1292 Meter's CT line fault (en)
- 1293 Meter's Voltage line fault (en)
- 1294 AFCI fault lock device (en)
- 1295 Communication Fault between Communication Board and BMS (duplicate) (en)
- 1296 Communication Fault between Communication Board and BMS (duplicate) (en)
- 1313-1324 Mpptn(n=1-12) High Voltage Fault (en)
- 1325-1333 DC Input MPPTn(n=4-12) Access Fault (en)
- 1345-1368 Stringn(n=1-24) Access Fault (en)
- 1409 HUB Grid Overvoltage (en)
- 1410 HUB Grid Undervoltage (en)
- 1411 HUB Grid Voltage Overfrequency (en)
- 1412 HUB Grid Voltage Underfrequency (en)
- 1413 HUB Generator Overvoltage (en)
- 1414 HUB Generator Undervoltage (en)
- 1415 HUB Generator Voltage Overfrequency (en)
- 1416 HUB Generator Voltage Underfrequency (en)
- 1417 HUB Load Overvoltage (en)
- 1418 HUB Load Undervoltage (en)
- 1419 HUB Load Voltage Overfrequency (en)
- 1420 HUB Load Voltage Underfrequency (en)
- 1421 HUB Grid Relay Short Circuit Fault (en)
- 1422 HUB Grid Relay Open Circuit Fault (en)
- 1423 HUB Generator Relay Short Circuit Fault (en)
- 1424 HUB Generator Relay Open Circuit Fault (en)
- 1425 HUB Load Voltage Anomaly Fault (en)
- 1426 HUB and Inverter Communication Fault (en)
- 1427 HUB Overload Fault (en)
- 1428 Inconsistent Settings of Paralleled Inverters in HUB Mode (en)
- 1429 HUB Overtemperature (en)
- 1430 Inconsistent Number of 485 and CAN Communications (en)
- 1441-1443 BDCn(n=1-3) Average Low Voltage Fault (Total battery voltage is below undervoltage value in non-charging mode) (en)
- 1444-1446 BDCn(n=1-3) Pre-charging Resistor Fault (en)
- 1447-1449 Reversed Batteryn(n=1-3) Polarity Connection Fault (en)
- 1450-1452 Batteryn(n=1-3) Pre-charging Relay Fault (en)
- 1456-1458 BDCn(n=1-3) Self-checking Fault (en)
- 1459-1461 Batteryn(n=1-3) Input Fault (en)
- 1473 External Communication Error (Battery 2) (en)
- 1474 Internal Communication Error (Battery 2) (en)
- 1475 Overvoltage Protection (Battery 2) (en)
- 1476 Undervoltage Protection (Battery 2) (en)
- 1477 Charging Overcurrent Protection (Battery 2) (en)
- 1478 Discharging Overcurrent Protection (Battery 2) (en)
- 1479 Cell Overtemperature Protection (Battery 2) (en)
- 1480 Cell Undertemperature Protection (Battery 2) (en)
- 1481 BMS Cell Imbalance (Battery 2) (en)
- 1482 Hardware Protection (Battery 2) (en)
- 1483 Circuit Fault (Battery 2) (en)