Failure Modes

Hover to preview, click to expand. Schematic regions cycle through related failure modes.
FAILURE MODES
Charge Current Overrun (125A vs 100A)Critical
EG4 W-04 / W-25
Discharge Current Overrun (140A vs 100A)Critical
EG4 W-26 / W-27
Single Battery Failure (Cascade Risk)High
EG4 W-04 / W-27
DC Arc Fault / Loose Connection FireHigh
EG4 W-02
Cold Weather Battery DamageMedium
Battery Communication MisconfigurationLow
EG4 W-00
PV Ground / Isolation FaultMedium
EG4 W-20
PV String Shading / MPPT MismatchMedium
Load Overload (>6kW)Medium
EG4 W-28
Inverter Fan Failure / OvertempLow
EG4 W-09 / W-13
Battery Cell Imbalance / DegradationLow
PV Over-Voltage (Cold Weather)Low
Battery Reverse PolarityLow
EG4 W-15 / F-02
Firmware Update FailureMedium
EG4 W-08 / F-00
4x QCells 430W (4S1P)2DC8 AWG25 ft+-2Basement (unheated)STA:C0BATLOAD*EG4 6000XPInverter / Charger2CAN/RS4852/0 AWG4insulated tub?BAT1BAT2ECO-WORTHY2x Cubix 10010.2 kWh total3L1 / L2 / GND120/240V ACLoad Panel6kW max continuousLoads1KEYDC+ (positive)DC- (negative)Data (CAN/RS485)AC (120/240V)GroundnFailure countSolar → DC → Inverter → Battery ↔ AC Loads
Click a failure mode in the sidebar to see details