Floating Neutral and 380 V at the Outlet: The Fatal Hybrid Install Error in Georgia
Why breaking N on Deye/EcoBSS burns loads at ~340–390 V, voids warranty, and who pays. Inversol N/PE rules and 3P+N Early-make / Late-break bypass.
Partner Academy · Error codes
Deye warnings & faults
W1–W32 and F1–F64 as shown on Deye hybrid displays / loggers. Partner lookup table — not a field repair manual.
System names match the inverter / logger display (English). Descriptions are partner-facing. Firmware maps can differ by model family — treat F7 vs F07 and F8 vs F08 as alternate numbering on some lines.
W Warnings (W1–W32)
| Code | System name | Description |
|---|---|---|
| W1 | Grid Voltage Warning | Grid voltage close to threshold limit |
| W2 | FAN WARN | Abnormal cooling fan operation |
| W3 | Grid Phase Wrong | Incorrect grid phase sequence |
| W4 | Meter Comm Fail | Energy meter communication failure |
| W5 | Upgrade Error Warning | Firmware upgrade error warning |
| W6 | PV Voltage Warning | PV input voltage close to limit |
| W7 | PV Current Warning | PV input current close to limit |
| W8 | DC Bus Voltage Warning | DC bus voltage close to limit |
| W9 | AC Current Warning | AC current close to threshold limit |
| W10 | Internal Temp Warning | High internal temperature warning |
| W11 | Heatsink Temp Warning | Elevated heatsink temperature |
| W12 | Hardware Warning | General hardware warning |
| W13 | Firmware Version Warning | Firmware version mismatch/conflict |
| W14 | Grid Frequency Warning | Grid frequency close to limit |
| W15 | Grid Impedance Warning | High grid impedance |
| W16 | AC Voltage Unbalance Warning | AC voltage phase unbalance |
| W17 | AC Current Unbalance Warning | AC current phase unbalance |
| W18 | Power Derating Warning | Inverter power derating active |
| W19 | Reactive Power Control Warning | Reactive power control active |
| W20 | Export Limitation Warning | Grid export limitation active |
| W21 | Zero Export Warning | Zero-export mode active |
| W22 | DRM Control Warning | DRM control active |
| W23 | Remote Control Warning | Inverter remotely controlled |
| W24 | Parallel Sync Warning | Parallel system synchronization warning |
| W25 | Parallel Power Limit Warning | Parallel system power limit warning |
| W26 | Battery Voltage Warning | Energy storage voltage close to limit |
| W27 | Battery Temperature Warning | Energy storage temperature close to limit |
| W28 | BMS Data Abnormal Warning | Abnormal BMS data received |
| W29 | Communication Delay Warning | Communication bus delay warning |
| W30 | System Load Warning | High system load warning |
| W31 | Battery comm warn | Energy storage communication warning |
| W32 | Parallel comm warn | Parallel communication warning |
F Faults (F1–F64)
| Code | System name | Description |
|---|---|---|
| F1 | DC Inversed Fault | Reverse DC (PV) polarity fault |
| F2 | DC Insulation Failure | Low DC insulation resistance |
| F3 | GFDI Failure | DC ground fault detection (GFDI) error |
| F4 | GFDI Ground Failure | Ground / GFDI fault |
| F5 | EEPROM Read Failure | EEPROM memory read failure |
| F6 | EEPROM Write Failure | EEPROM memory write failure |
| F7 | DC/DC Softstart Fault | DC/DC soft-start failure |
| F07 | GFDI Fuse Blown | Blown GFDI protection fuse |
| F8 | GFDI Relay Failure | GFDI protection relay fault |
| F08 | GFDI Ground Touch Fault | Improper ground contact / Touch fault |
| F9 | IGBT Failure | IGBT power module failure |
| F10 | AuxPowerBoard Failure | Auxiliary power supply board failure |
| F11 / F30 | AC MainContactor Fault | Main AC contactor failure |
| F12 / F31 | AC SlaveContactor Fault | Auxiliary AC contactor failure |
| F13 | Grid Mode Changed | Grid operational mode changed |
| F14 | DC OverCurr Fault | DC overcurrent fault |
| F15 | SW AC OverCurr Fault | Software AC overcurrent protection fault |
| F16 | GFCI Leakage Fault | AC leakage current exceeding threshold (GFCI) |
| F17 | Tz PV OverCurr Fault | PV instantaneous overcurrent fault |
| F18 | HW AC OverCurr Fault | Hardware-level AC overcurrent fault |
| F19 | Tz Integ Fault | Internal inverter integration/MCU fault |
| F20 | Tz Dc OverCurr Fault | Off-grid DC overcurrent fault |
| F21 | DC Leakage Flow Fault | DC leakage current detected |
| F22 | Emergency Stop Fault | System emergency shutdown triggered |
| F23 | AC Leakage Current Fault | Critical AC leakage current fault |
| F24 | DC Insulation Impedance Fault | Critically low DC insulation impedance |
| F25 | DC Feedback Fault | DC circuit feedback loop error |
| F26 | DC Busbar Unbalanced Fault | DC busbar voltage unbalance |
| F27 | DC End Insulation Fault | End-circuit DC insulation breakdown |
| F28 | DCIOver M1/M2 Fault | MPPT1 / MPPT2 overcurrent fault |
| F29 | Parallel CANBus Fault | Parallel CAN communication bus fault |
| F32 | DC Channel High Fault | Excessively high DC channel voltage |
| F33 | AC OverCurr Fault | General AC overcurrent fault |
| F34 | AC Overload Fault | AC power overload fault |
| F35 | AC NoUtility Fault | No grid utility voltage detected |
| F36 | AC GridPhaseSeque Fault | AC grid phase sequence failure |
| F37 | AC Volt Unbalance Fault | Critical AC voltage unbalance fault |
| F38 | Parallel System Stop | Parallel system emergency stop |
| F39 | AC Over Current (1 cycle) | Instantaneous 1-cycle AC overcurrent |
| F40 | Internal DC Over Current | Internal DC overcurrent fault |
| F41 | Parallel System Stop | Inverter cluster shutdown |
| F42 | Parallel Version Fault | Parallel units firmware mismatch |
| F43 | AC VW OverVolt Fault | Line V-W overvoltage fault |
| F44 | AC VW UnderVolt Fault | Line V-W undervoltage fault |
| F45 | AC Line Over Voltage | AC grid line overvoltage |
| F46 | AC Line Under Voltage | AC grid line undervoltage |
| F47 | AC OverFreq Fault | AC grid over-frequency fault |
| F48 | AC UnderFreq Fault | AC grid under-frequency fault |
| F49 | Phase DC Component OC | Phase 1 DC component overcurrent |
| F50 | Phase DC Component OC | Phase 2 DC component overcurrent |
| F51 | Phase DC Component OC | Phase 3 DC component overcurrent |
| F52 | Grid Relay Fault | Grid disconnect relay fault |
| F53 | AC Relay Stuck Fault | AC contactor/relay mechanically stuck |
| F54 | AC Relay Self-Check Failure | AC relay self-test failure |
| F55 | DC Voltage Too High | Dangerously high DC voltage |
| F56 | DC Bus Voltage Too Low/High | DC bus voltage out of operational range |
| F58 | BMS Communication Fault | Battery BMS communication failure |
| F62 | DRM Function Stop | Inverter shutdown via external DRM signal |
| F63 | PV Overcurrent / Choke Fault | PV filter choke / inductor overload |
| F64 | High Heatsink Temperature | Critical heatsink / IGBT over-temperature |
No matching codes
Need install / CT / floating-neutral context? Start with INVERSOL FLEX.
EcoBSS / FLEX codes →Related guides
Field guides that pair with Deye W/F error-code pages — code detail stays on Academy.
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